n. 外翻, 外翻部分

[医] 凸出, 外突

Evagination \E*vag`i*na"tion\, n. [L. evaginatio an extending,
evaginare to unsheathe; e out + vagina sheath.]
1. The act of unsheathing.

2. An outgrowth or protruded part.
[Webster 1913 Suppl.]