from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Causing irritation, especially physical irritation.
- n. A source of irritation: tobacco smoke, a common eye irritant.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Causing irritation or inflammation.
- n. Any medication designed to cause irritation
- n. A source of irritation.
from the GNU version of the Collaborative International Dictionary of English
- adj. Rendering null and void; conditionally invalidating.
- adj. Irritating; producing irritation or inflammation.
- n. That which irritates or excites.
- n. Any agent by which irritation is produced
- n. A poison that produces inflammation.
from The Century Dictionary and Cyclopedia
- Irritating; exasperating; specifically, producing pain, heat, or tension; causing inflammation: as, an irritant poison.
- n. That which irritates or exasperates; specifically, a therapeutic agent that causes pain, heat, or tension, or a poison that produces inflammation.
- Rendering null and void.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. something that causes irritation and annoyance
Another irritant is his mouthpiece daughter who spews the same nonsense her father does on every station possible.
After contact with a skin irritant plant, wash the exposed areas thoroughly with soap and water.
Respondents by a 2-to-1 margin said Beijing's efforts to address a key long-term irritant, intellectual-property theft, is stagnant at best.
A good way to remove any natural irritant is by using tamarind juice in the preparation.
One major irritant is the endless message loop that rewarding illegal aliens Is Not Amnesty.
Another irritant was the references to Paul Foster Case; she tells us that he linked colors, musical notes and the Tarot; then she misquotes his work.
Certain substances, the so-called irritant poisons, such as arsenic, tartar emetic and the like, induce their toxic effects by causing irritation and inflammation of the alimentary canal.
If the irritant has been a caustic alkali, such as potash, lye, ammonia, or soda, then vinegar should be the first application.
Some of the agents of this class, termed irritant emetics, produce vomiting by a local action on the stomach, and do not affect this organ when introduced elsewhere.
Another irritant has been the U.S. drone campaign against militants in Pakistan's tribal badlands on the border with Afghanistan, which Islamabad complains have killed civilians and only encouraged public sympathy for the groups sheltering there.