exumbrella
n. [动]外伞,上伞(水母伞的外凸面)
词形变化
exumbrellae
exumbrellas
复数
exumbrellas
exumbrellae
复数
释义与例句
n.
-
1.
The outer surface of the umbrella of a jellyfish.
词源
From ex- + umbrella.
来源:wiktionary