资料来源 : pyDict

清除,扫清清晰的,明白的;晴朗的;清澈的,明亮的;畅通的,无阻的

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Clear \Clear\, adv.
   1. In a clear manner; plainly.

            Now clear I understand What oft . . . thoughts have
            searched in vain.                     --Milton.

   2. Without limitation; wholly; quite; entirely; as, to cut a
      piece clear off.

Clear \Clear\ (kl[=e]r), n. (Carp.)
   Full extent; distance between extreme limits; especially; the
   distance between the nearest surfaces of two bodies, or the
   space between walls; as, a room ten feet square in the clear.

Clear \Clear\ (kl[=e]r), a. [Compar. {Clearer} (-[~e]r); superl.
   {Clearest}.] [OE. cler, cleer, OF. cler, F. clair, fr.L.
   clarus, clear, broght, loud, distinct, renownwd; perh. akin
   to L. clamare to call, E. claim. Cf. {Chanticleer},
   {Clairvoyant}, {Claret}, {Clarufy}.]
   1. Free from opaqueness; transparent; bright; light;
      luminous; unclouded.

            The stream is so transparent, pure, and clear.
                                                  --Denham.

            Fair as the moon, clear as the sun.   --Canticles
                                                  vi. 10.

   2. Free from ambiguity or indistinctness; lucid; perspicuous;
      plain; evident; manifest; indubitable.

            One truth is clear; whatever is, is right. --Pope.

   3. Able to perceive clearly; keen; acute; penetrating;
      discriminating; as, a clear intellect; a clear head.

            Mother of science! now I feel thy power Within me
            clear, not only to discern Things in their causes,
            but to trace the ways Of highest agents. --Milton.

   4. Not clouded with passion; serene; cheerful.

            With a countenance as clear As friendship wears at
            feasts.                               --Shak.

   5. Easily or distinctly heard; audible; canorous.

            Hark! the numbers soft and clear Gently steal upon
            the ear.                              --Pope.

   6. Without mixture; entirely pure; as, clear sand.

   7. Without defect or blemish, such as freckles or knots; as,
      a clear complexion; clear lumber.

   8. Free from guilt or stain; unblemished.

            Statesman, yet friend to truth! in soul sincere, In
            action faithful, and in honor clear.  --Pope.

   9. Without diminution; in full; net; as, clear profit.

            I often wished that I had clear, For life, six
            hundred pounds a-year.                --Swift
            .

   10. Free from impediment or obstruction; unobstructed; as, a
       clear view; to keep clear of debt.

             My companion . . . left the way clear for him.
                                                  --Addison.

   11. Free from embarrassment; detention, etc.

             The cruel corporal whispered in my ear, Five
             pounds, if rightly tipped, would set me clear.
                                                  --Gay.

   {Clear breach}. See under {Breach}, n., 4.

   {Clear days} (Law.), days reckoned from one day to another,
      excluding both the first and last day; as, from Sunday to
      Sunday there are six clear days.

   {Clear stuff}, boards, planks, etc., free from knots.

   Syn: Manifest; pure; unmixed; pellucid; transparent;
        luminous; obvious; visible; plain; evident; apparent;
        distinct; perspicuous. See {Manifest}.

Clear \Clear\, v. t. [imp. & p. p. {Cleared}; p. pr. & vb. n.
   {Clearing}.]
   1. To render bright, transparent, or undimmed; to free from
      clouds.

            He sweeps the skies and clears the cloudy north.
                                                  --Dryden.

   2. To free from impurities; to clarify; to cleanse.

   3. To free from obscurity or ambiguity; to relive of
      perplexity; to make perspicuous.

            Many knotty points there are Which all discuss, but
            few can clear.                        --Prior.

   4. To render more quick or acute, as the understanding; to
      make perspicacious.

            Our common prints would clear up their
            understandings.                       --Addison

   5. To free from impediment or incumbrance, from defilement,
      or from anything injurious, useless, or offensive; as, to
      clear land of trees or brushwood, or from stones; to clear
      the sight or the voice; to clear one's self from debt; --
      often used with of, off, away, or out.

            Clear your mind of cant.              --Dr. Johnson.

            A statue lies hid in a block of marble; and the art
            of the statuary only clears away the superfluous
            matter.                               --Addison.

   6. To free from the imputation of guilt; to justify,
      vindicate, or acquit; -- often used with from before the
      thing imputed.

            I . . . am sure he will clear me from partiality.
                                                  --Dryden.

            How! wouldst thou clear rebellion?    --Addison.

   7. To leap or pass by, or over, without touching or failure;
      as, to clear a hedge; to clear a reef.

   8. To gain without deduction; to net.

            The profit which she cleared on the cargo.
                                                  --Macaulay.

   {To clear a ship at the customhouse}, to exhibit the
      documents required by law, give bonds, or perform other
      acts requisite, and procure a permission to sail, and such
      papers as the law requires.

   {To clear a ship for action}, or {To clear for action}
      (Naut.), to remove incumbrances from the decks, and
      prepare for an engagement.

   {To clear the land} (Naut.), to gain such a distance from
      shore as to have sea room, and be out of danger from the
      land.

   {To clear hawse} (Naut.), to disentangle the cables when
      twisted.

   {To clear up}, to explain; to dispel, as doubts, cares or
      fears.

Clear \Clear\ (kl[=e]r), v. i.
   1. To become free from clouds or fog; to become fair; --
      often followed by up, off, or away.

            So foul a sky clears not without a storm. --Shak.

            Advise him to stay till the weather clears up.
                                                  --Swift.

   2. To disengage one's self from incumbrances, distress, or
      entanglements; to become free. [Obs.]

            He that clears at once will relapse; for finding
            himself out of straits, he will revert to his
            customs; but he that cleareth by degrees induceth a
            habit of frugality.                   --Bacon.

资料来源 : WordNet®

clear
     adj 1: clear to the mind; "a clear and present danger"; "a clear
            explanation"; "a clear case of murder"; "a clear
            indication that she was angry"; "gave us a clear idea
            of human nature" [ant: {unclear}]
     2: free from confusion or doubt; "a complex problem requiring a
        clear head"; "not clear about what is expected of us"
     3: affording free passage or view; "a clear view"; "a clear
        path to victory" [syn: {open}]
     4: free from cloudiness; allowing light to pass through; "clear
        water"; "clear plastic bags"; "clear glass"; "the air is
        clear and clean" [ant: {opaque}]
     5: free from contact or proximity or connection; "we were clear
        of the danger"; "the ship was clear of the reef" [syn: {clear(p)}]
     6: characterized by freedom from troubling thoughts (especially
        guilt); "a clear conscience"; "regarded her questioner
        with clear untroubled eyes"
     7: (of sound or color) free from anything that dulls or dims;
        "efforts to obtain a clean bass in orchestral recordings";
        "clear laughter like a waterfall"; "clear reds and blues";
        "a light lilting voice like a silver bell" [syn: {clean},
        {light}, {unclouded}]
     8: (especially of a title) free from any encumberance or
        limitation  that presents a question of fact or law; "I
        have clear title to this property" [syn: {unmortgaged}]
     9: clear and distinct to the senses; easily perceptible; "as
        clear as a whistle"; "clear footprints in the snow"; "the
        letter brought back a clear image of his grandfather"; "a
        spire clean-cut against the sky"; "a clear-cut pattern"
        [syn: {clean-cut}, {clear-cut}]
     10: accurately stated or described; "a set of well-defined
         values" [syn: {well-defined}] [ant: {ill-defined}]
     11: free from clouds or mist or haze; "on a clear day" [ant: {cloudy}]
     12: free of restrictions or qualifications; "a clean bill of
         health"; "a clear winner" [syn: {clean}]
     13: free from flaw or blemish or impurity; "a clear perfect
         diamond"
     14: clear of charges or deductions; "a clear profit"
     15: easily deciphered [syn: {decipherable}, {readable}]
     16: freed from any question of guilt; "is absolved from all
         blame"; "was now clear of the charge of cowardice"; "his
         official honor is vindicated" [syn: {absolved}, {cleared},
          {exculpated}, {exonerated}, {vindicated}]
     17: characterized by ease and quickness in perceiving; "clear
         mind"; "a percipient author" [syn: {percipient}]
     18: of complexion; without such blemishes as e.g. acne; "the
         clear complexion of a healthy young woman"

clear
     n 1: the state of being free of suspicion; "investigation showed
          that he was in the clear"
     2: a clear or unobstructed space or expanse of land or water;
        "finally broke out of the forest into the open" [syn: {open}]

clear
     adv 1: completely; "read the book clear to the end"; "slept clear
            through the night"; "there were open fields clear to
            the horizon" [syn: {all the way}]
     2: in an easily perceptible manner; "could be seen clearly
        under the microscope"; "She cried loud and clear" [syn: {clearly}]

clear
     v 1: rid of obstructions; "Clear your desk" [syn: {unclutter}]
          [ant: {clutter}]
     2: make a way or path by removing objects; "Clear a path
        through the dense forest"
     3: become clear; "The sky cleared after the storm" [syn: {clear
        up}, {light up}, {brighten}] [ant: {overcast}]
     4: grant authorization or clearance for; "Clear the manuscript
        for publication"; "The rock star never authorized this
        slanderous biography" [syn: {authorize}, {authorise}, {pass}]
     5: remove; "clear the leaves from the lawn"; "Clear snow from
        the road"
     6: go unchallenged; be approved; "The bill cleared the House"
        [syn: {pass}]
     7: be debited and credited to the proper bank accounts; "The
        check will clear within 2 business days" [ant: {bounce}]
     8: go away or disappear; "The fog cleared in the afternoon"
     9: pass by, over, or under without making contact; "the balloon
        cleared the tree tops" [syn: {top}]
     10: make free from confusion or ambiguity; make clear; "Could
         you clarify these remarks?"; "Clear up the question of
         who is at fault" [syn: {clear up}, {shed light on}, {crystallize},
          {crystallise}, {crystalize}, {crystalise}, {straighten
         out}, {sort out}, {enlighten}, {illuminate}, {elucidate}]
     11: free from payment of customs duties, as of a shipment;
         "Clear the ship and let it dock"
     12: clear from impurities, blemishes, pollution, etc.; "clear
         the water before it can be drunk"
     13: yield as a net profit; "This sale netted me $1 million"
         [syn: {net}]
     14: make as a net profit; "The company cleared $1 million" [syn:
          {net}, {sack}, {sack up}]
     15: earn on some commercial or business transaction; earn as
         salary or wages; "How much do you make a month in your
         new job?"; "She earns a lot in her new job"; "this merger
         brought in lots of money"; "He clears $5,000 each month"
         [syn: {gain}, {take in}, {make}, {earn}, {realize}, {realise},
          {pull in}, {bring in}]
     16: sell; "We cleared a lot of the old model cars"
     17: pass an inspection or receive authorization; "clear customs"
     18: pronounce not guilty of criminal charges; "The suspect was
         cleared of the murder charges" [syn: {acquit}, {assoil},
         {discharge}, {exonerate}, {exculpate}] [ant: {convict}]
     19: settle, as of a debt; "clear a debt"; "solve an old debt"
         [syn: {solve}]
     20: make clear, bright, light, or translucent; "The water had to
         be cleared through filtering"
     21: rid of instructions or data; "clear a memory buffer"
     22: remove (people) from a building; "clear the patrons from the
         theater after the bomb threat"
     23: remove the occupants of; "Clear the building"
     24: free (the throat) by making a rasping sound; "Clear the
         throat" [syn: {clear up}]

资料来源 : Free On-Line Dictionary of Computing

CLEAR
     
        A {specification language} based on {initial algebra}s.
     
        ["An Informal Introduction to Specification Using CLEAR",
        R.M. Burstall in The Correctness Problem in Computer Science,
        R.S. Boyer et al eds, Academic Press 1981, pp. 185-213].
     
        (1994-11-03)