单词 blastid 释义 blastid Palont.|blstd|[f. Gr. - sprout, bud; cf. blastema.](See quot.)1877Le Conte Elem. Geol. (1879) 299 Stemmed Echinoderms, or Crinoids may be divided into three families, viz.: 1. Crinids; 2. Cystids; 3. Blastids.Ibid. 301 Blastids....