cystidean

词形变化

cystideans 复数 cystideans

释义与例句

n.
  1. 1.

    Any of the †Cystidea, a class of extinct echinoderms, now known as the †Cystoidea.

    废旧 生物 动物学
  2. 2.

    A stage in the development of many crinoids after the free-swimming larva attaches to a surface, but before it develops the structures necessary to feed.

    生物 动物学

词源

†Cystidea + -an

来源：wiktionary