单词 ratite 释义 ratite, a. (and n.) Ornith.|rtat|[f. L. ratis raft + -ite2. Cf. L. rattus (of a coin) marked with the figure of a raft.]Of or belonging to the Ratit, a class of birds (so named by Merrem, 1812) having a keelless sternum, as the ostrich,...