单词 cnosteum 释义 ‖ cnosteum Zool.|sinstm|[f. Gr. - common + ὀ bone.]The common calcareous skeleton of the Hydrocorallina, a division of the Hydrozoa, as of millepore coral.1880Moseley Zool. Challenger Exped. vii. 12 The hard tissue is here termed cno...