irritant

名词 irritant:

1. something that causes irritation and annoyance
   同义词：thorn

1. The noise of traffic is a constant irritant to city dwellers.
   车辆的噪音对城市居民是永无止境的骚扰。

ir.ri.tant

adj.（形容词）
Causing irritation, especially physical irritation.
有刺激性的：导致受刺激的，尤其是身体的刺激
n.（名词）
A source of irritation:
刺激物：刺激的源头：
例句：
tobacco smoke, a common eye irritant.
烟草发出的烟，一种常见的眼睛刺激物

来源：
French
法语
from Latin irrot3ns irrotant- [present participle of] irrot3re [to irritate]
源自 拉丁语 irrot3ns irrotant- [] irrot3re的现在分词 [使恼怒]