名詞 mollusk:

1. invertebrate having a soft unsegmented body usually enclosed in a shell
   同義詞：mollusc, shellfish

1. A protein substance that is the organic basis of mollusk shells.
   貝殼硬蛋白作為軟體動物貝殼有機基質(zhì)的蛋白質(zhì)
2. The pearly internal layer of certain mollusk shells, used to make decorative objects.
   珠母層某些軟體動物殼內(nèi)似珍珠的層，用來做裝飾物
3. An animal, such as an insect or a mollusk, that lacks a backbone or spinal column.
   無脊椎動物缺少脊骨或脊柱的動物，例如昆蟲或軟體動物

mollusk 也作 mol.lusc

n.（名詞）
Any of numerous chiefly marine invertebrates of the phylum Mollusca, typically having a soft unsegmented body, a mantle, and a protective calcareous shell and including the edible shellfish and the snails.
軟體動物：任一種無脊椎軟體動物綱的海生動物，身體柔軟且不分段，外有套膜，并具有保護性的鈣質(zhì)殼，包括可食用的有殼的水生動物和蝸牛

來源：
French mollusque
法語 mollusque
from New Latin Mollusca [phylum name]
源自 現(xiàn)代拉丁語 Mollusca [門類名稱]
from neuter pl. of Latin molluscus [thin-shelled]
源自 拉丁語 molluscus的中性復(fù)數(shù) [薄殼的]
from mollis [soft] * see mel-
源自 mollis [軟的] *參見 mel-

【引伸】
mollus.cous