nematocystn.
英 nɪ'mætə(ʊ)sɪst; 'nemət- | 美 nɪ'mætəsɪst
中文n. 刺细胞，[无脊椎] 刺丝囊
词根词源
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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