资料来源 : pyDict

伸缩桌

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

Extension \Ex*ten"sion\, n. [L. extensio: cf. F. extension. See
   {Extend}, v. t.]
   1. The act of extending or the state of being extended; a
      stretching out; enlargement in breadth or continuation of
      length; increase; augmentation; expansion.

   2. (Physics) That property of a body by which it occupies a
      portion of space.

   3. (Logic & Metaph.) Capacity of a concept or general term to
      include a greater or smaller number of objects; --
      correlative of intension.

            The law is that the intension of our knowledge is in
            the inverse ratio of its extension.   --Sir W.
                                                  Hamilton.

            The extension of [the term] plant is greater than
            that of geranium, because it includes more objects.
                                                  --Abp.
                                                  Thomson.

   4. (Surg.) The operation of stretching a broken bone so as to
      bring the fragments into the same straight line.

   5. (Physiol.) The straightening of a limb, in distinction
      from flexion.

   6. (Com.) A written engagement on the part of a creditor,
      allowing a debtor further time to pay a debt.

   {Counter extension}. (Surg.) See under {Counter}.

   {Extension table}, a table so constructed as to be readily
      extended or contracted in length.