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The state or quality of being irregular; that which is irregular.

The state or quality of being irritable; quick excitability; petulance; fretfulness; as, irritability of temper.

Very susceptible of anger or passion; easily inflamed or exasperated; as, an irritable temper. Vicious, old, and irritable. Tennyson.

Irritability.

In an irritable manner.

The state o quality of being irritant or irritating.

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. Hayward.

or violence of; to heighten excitement in; to intensify; to stimulate. Cold maketh the spirits vigorous and irritateth them. Bacon.

The act of irritating, or exciting, or the state of being irritated; excitement; stimulation, usually of an undue and uncomfortable kind; especially, excitement of anger or passion; provocation; annoyance; anger. The whole body of the arts and sciences composes one vast machinery for the irritation and development of t…

Serving to excite or irritate; irritating; as, an irritative agent.

Exciting; producing irritation; irritating. [R.] Hales.

The third joint or the antennæ of the Crustacea.

The seed of the wild licorice (Abrus precatorius) used by the people of India for beads in rosaries and necklaces, as a standard weight, etc.; -- called also jumble bead.

A witticism.

Jesting; merriment.

The state or quality of being junior.

One of the fossil Coniferæ, evidently allied to the juniper.

See Cerargyrite.

A compound in which tar or asphaltum combined with animal or vegetable oils is vulcanized by sulphur, the product closely resembling rubber; -- used principally as an insulating material in telegraphy. Knight.

Hydrous sulphate of magnesia found at the salt mines of Stassfurt, Prussian Saxony.