sea slug
 海參


 Sea slug Zool. (a) A holothurian. (b) A nudibranch mollusk.

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 Slug n.
 1. A drone; a slow, lazy fellow; a sluggard.
 2. A hindrance; an obstruction. [Obs.]
 3. Zool. Any one of numerous species of terrestrial pulmonate mollusks belonging to Limax and several related genera, in which the shell is either small and concealed in the mantle, or altogether wanting. They are closely allied to the land snails.
 4. Zool. Any smooth, soft larva of a sawfly or moth which creeps like a mollusk; as, the pear slug; rose slug.
 5. A ship that sails slowly. [Obs.]
    His rendezvous for his fleet, and for all slugs to come to, should be between Calais and Dover.   --Pepys.
 6.  An irregularly shaped piece of metal, used as a missile for a gun.
 7. Print. A thick strip of metal less than type high, and as long as the width of a column or a page, -- used in spacing out pages and to separate display lines, etc.
 Sea slug. Zool. (a) Any nudibranch mollusk. (b) A holothurian.
 Slug caterpillar. Same as Slugworm.


 Tre·pang n.  Zool. Any one of several species of large holothurians, some of which are dried and extensively used as food in China; -- called also bêche de mer, sea cucumber, and sea slug. [Written also tripang.]
 Note: ☞ The edible trepangs are mostly large species of Holothuria, especially Holothuria edulis.  They are taken in vast quantities in the East Indies, where they are dried and smoked, and then shipped to China.  They are used as an ingredient in certain kinds of soup.

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 sea slug
      n : any of various marine gastropods of the suborder
          Nudibranchia having a shell-less and often beautifully
          colored body [syn: nudibranch]