embolus

n. 栓子, 栓塞物
【医】 栓子

名词复数:emboli 

em.bo.lus

n.（名词）
【复数】 em.bo.li[-lo.]
A mass, such as an air bubble, a detached blood clot, or a foreign body, that travels through the bloodstream and lodges so as to obstruct or occlude a blood vessel.
栓子：如气泡、脱落的血块或异物等物体在血流中停留而导致阻塞或闭塞血管

来源：
Latin [piston of a pump]
拉丁语 [泵的活塞]
from Greek embolos [stopper, plug]
源自 希腊语 embolos [停止器，塞子]
from emballein [to insert] * see emblem
源自 emballein [插入] *参见 emblem