leech /ˈliʧ/
 水蛭,吸血鬼,榨取他人利益的人(vt.)以水蛭吸血(vi.)依附于別人


 leech /ˈlɪʧ/ 名詞
 水蛭,抽血器,醫生


 Leech n. See 2d Leach.


 Leech, v. t. See Leach, v. t.


 Leech, n.  Naut. The border or edge at the side of a sail. [Written also leach.]
 Leech line, a line attached to the leech ropes of sails, passing up through blocks on the yards, to haul the leeches by. --Totten.
 Leech rope, that part of the boltrope to which the side of a sail is sewed.


 Leech, n.
 1. A physician or surgeon; a professor of the art of healing. [Written also leach.] [Archaic]
    Leech, heal thyself.   --Wyclif (Luke iv. 23).
 2. Zool. Any one of numerous genera and species of annulose worms, belonging to the order Hirudinea, or Bdelloidea, esp. those species  used in medicine, as Hirudo medicinalis of Europe, and allied species.
 Note: ☞ In the mouth of bloodsucking leeches are three convergent, serrated jaws, moved by strong muscles. By the motion of these jaws a stellate incision is made in the skin, through which the leech sucks blood till it is gorged, and then drops off. The stomach has large pouches on each side to hold the blood. The common large bloodsucking leech of America (Macrobdella decora) is dark olive above, and red below, with black spots. Many kinds of leeches are parasitic on fishes; others feed upon worms and mollusks, and have no jaws for drawing blood. See Bdelloidea. Hirudinea, and Clepsine.
 3. Surg. A glass tube of peculiar construction, adapted for drawing blood from a scarified part by means of a vacuum.
 Horse leech, a less powerful European leech (Hæmopis vorax), commonly attacking the membrane that lines the inside of the mouth and nostrils of animals that drink at pools where it lives.


 Leech, v. t. [imp. & p. p. Leeched p. pr. & vb. n. Leeching.]
 1. To treat as a surgeon; to doctor; as, to leech wounds. [Archaic]
 2. To bleed by the use of leeches.

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 leech
      n 1: carnivorous or bloodsucking aquatic or terrestrial worms
           typically having a sucker at each end [syn: bloodsucker,
            hirudinean]
      2: a follower who hangs around a host (without benefit to the
         host) in hope of gain or advantage [syn: parasite, sponge,
          sponger]
      v : draw blood; "In the old days, doctors routinely bled
          patients as part of the treatment" [syn: bleed, phlebotomize,
           phlebotomise]