exotheca

[动]外鞘

词形变化

exothecae 复数 exothecae

释义与例句

n.
  1. 1.

    The tissue that fills the interspaces between the costae of many madreporarian corals, usually consisting of small transverse or oblique septa.

    生物 动物学

词源

From exo- + theca (“the calcareous wall of a corallite”).

来源：wiktionary