| 释义 |
prostomiumenUK
pro·sto·mi·um P0610400 (prō-stō′mē-əm)n. pl. pro·sto·mi·a (-mē-ə) The anterior portion of the head of an annelid worm, situated in front of the mouth.
[New Latin, from Greek prostomion, mouth, lips : pro-, in front of; see pro-2 + stoma, mouth.]
pro·sto′mi·al (-əl) adj.prostomium (prəʊˈstəʊmɪəm) n, pl -mia (-mɪə) (Zoology) the lobe at the head end of earthworms and other annelids: bears tentacles, palps, etc, or forms part of a sucker or proboscis[via New Latin from Greek prostomion mouth] proˈstomial adjpro•sto•mi•um (proʊˈstoʊ mi əm)
n., pl. -mi•a (-mi ə) a small protuberance from the first segment above the mouth in certain worms and mollusks. [1865–70; < Greek prostómion mouth. See pro-2, stoma, -ium2] pro•sto′mi•al, adj.
prostomiumenUK
prostomium[prō′stō·mē·əm] (invertebrate zoology) The portion of the head anterior to the mouth in annelids and mollusks. prostomiumenUK
prostomium (prō-stō′mē-əm)n. pl. prosto·mia (-mē-ə) The anterior portion of the head of an annelid worm, situated in front of the mouth.
pro·sto′mi·al (-əl) adj.prostomium that part of the head of some annelids and molluscs which lies in front of the mouth. |