excrescence

n. 瘤, 赘生物, 自然长出物(如指甲、头发)
【医】 赘生物, 赘疣

ex.cres.cence

n.（名词）
An abnormal outgrowth or enlargement, such as a wart.
赘疣：一种不正常的增长或扩大，例如疣
A normal outgrowth, such as a fingernail or a beard.
自然长出物：正常的生长，如指甲或胡须
A usually unwanted or unncessary accretion:
多余物：通常不想要的或不必要的增长：
例句：
.Independent agencies were an excrescence on the Constitution.(Los Angeles Times)
.独立的代理处是宪法不需要的东西.(洛杉矶时报)


来源：
Middle English
中古英语
from Latin excrôscentia
源自 拉丁语 excrôscentia
from neuter pl. of excrôscôns excrôscent- [present participle of] excrôscere [to grow out]
源自 excrôscôns的中性复数 excrôscent- [] excrôscere的现在分词 [长得太大而不能]
ex- [ex-]
ex- [前缀，表.从前的，前任的.]
crôscere [to grow] * see ker- 2
crôscere [生长] *参见 ker- 2