Irritant

[ir·ri·tant]

An irritant is a substance that causes pain, itching, or discomfort. Chlorine, which is commonly used in swimming pools and hot tubs, is an irritant that dries out skin and reddens eyes.

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Rendering null and void; conditionally invalidating.

Noun
something that causes irritation and annoyance; "he''s a thorn in my flesh"

a.
Rendering null and void; conditionally invalidating.

a.
Irritating; producing irritation or inflammation.

n.
That which irritates or excites.

n.
Any agent by which irritation is produced; as, a chemical irritant; a mechanical or electrical irritant.

n.
A poison that produces inflammation.

Irritant

Ir"ri*tant , a. [LL. irritants, -antis, p. pr. of irritare to make null, fr. L. irritus void; pref. ir- not + ratus established.] (Scots Law) Rendering null and void; conditionally invalidating.
The states elected Harry, Duke of Anjou, for their king, with this clause irritant; that, if he did violate any part of his oath, the people should owe him no allegiance.

Irritant

Ir"ri*tant, a. [L. irritans, -antis, p. pr. of irritare: cf. F. irritant. See Irritate to excite.] Irritating; producing irritation or inflammation.

Irritant

Ir"ri*tant, n. [Cf. F. irritant.] 1. That which irritates or excites. 2. (Physiol. & Med.) Any agent by which irritation is produced; as, a chemical irritant; a mechanical or electrical irritant. 3. (Toxicology) A poison that produces inflammation. Counter irritant. See under Counter. -- Pure irritant (Toxicology), a poison that produces inflammation without any corrosive action upon the tissues.

Rendering null and void; conditionally invalidating.

Irritating; producing irritation or inflammation.

That which irritates or excites.

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Usage Examples
Misspelled Form

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