单词 acantho- 释义 acantho-ad. Gr. ἀ- combining form of ἄ thorn, as in ἀ- thorn-bearing; hence in many modern compounds with sense of ‘thorn, thorny.’ acanthodian |-d-|, earlier also -ean, a. and n., (of) a small spiny-finned, shark-like fossil fish...