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

Beach \Beach\ (b[=e]ch), n.; pl. {Beaches} (-[e^]z). [Cf. Sw.
   backe hill, Dan. bakke, Icel. bakki hill, bank. Cf. {Bank}.]
   1. Pebbles, collectively; shingle.

   2. The shore of the sea, or of a lake, which is washed by the
      waves; especially, a sandy or pebbly shore; the strand.

   {Beach flea} (Zo["o]l.), the common name of many species of
      amphipod Crustacea, of the family {Orchestid[ae]}, living
      on the sea beaches, and leaping like fleas.

   {Beach grass} (Bot.), a coarse grass ({Ammophila
      arundinacea}), growing on the sandy shores of lakes and
      seas, which, by its interlaced running rootstocks, binds
      the sand together, and resists the encroachment of the
      waves.

   {Beach wagon}, a light open wagon with two or more seats.

   {Raised beach}, an accumulation of water-worn stones, gravel,
      sand, and other shore deposits, above the present level of
      wave action, whether actually raised by elevation of the
      coast, as in Norway, or left by the receding waters, as in
      many lake and river regions.

Flea \Flea\, n. [OE. fle, flee, AS. fle['a], fle['a]h; akin to
   D. ?, OHG. fl?h, G. floh, Icel. fl?, Russ. blocha; prob. from
   the root of E. flee. ? 84. See {Flee}.] (Zo["o]l.)
   An insect belonging to the genus Pulex, of the order
   Aphaniptera. Fleas are destitute of wings, but have the power
   of leaping energetically. The bite is poisonous to most
   persons. The human flea ({Pulex irritans}), abundant in
   Europe, is rare in America, where the dog flea ({P. canis})
   takes its place. See {Aphaniptera}, and {Dog flea}. See
   Illustration in Appendix.

   {A flea in the ear}, an unwelcome hint or unexpected reply,
      annoying like a flea; an irritating repulse; as, to put a
      flea in one's ear; to go away with a flea in one's ear.

   {Beach flea}, {Black flea}, etc. See under {Beach}, etc.

资料来源 : WordNet®

beach flea
     n : small amphipod crustaceans that hop like fleas; common on
         ocean beaches [syn: {sand hopper}, {sandhopper}, {sand
         flea}]