hydrotheca

螅鞘

词形变化

hydrothecae hydrothecas 复数 hydrothecas hydrothecae 复数

释义与例句

n.
  1. 1.

    One of the calicles that protect the hydranths in certain Hydroidea (Thecaphora).

    生物 动物学

词源

From hydro- + theca.

来源：wiktionary