nematocyst
英 [nɪ'mætə(ʊ)sɪst; 'nemət-]美 [nɪ'mætəsɪst]
n. 刺细胞，[无脊椎] 刺丝囊
英文词源
nematocyst (n.)
1875, from nemato-, comb. form of Greek nema, nematos "thread" (genitive nematos), from stem of nein "to spin" (see needle (n.)) + cyst.
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