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

IRRORATE
Ir"ro*rate, v. t. [imp. & p. p. Irrorated; p. pr. & vb. n.
Irrorating.] Etym: [L. irroratus, p. p. of irrorare to bedew; pref.
ir- in + ros, roris, dew.]

Defn: To sprinkle or moisten with dew; to bedew. [Obs.]

IRRORATE
Ir"ro*rate, a. (Zoöl.)

Defn: Covered with minute grains, appearing like fine sand.

IRRORATION
Ir`ro*ra"tion, n. Etym: [Cf. F. irroration.]

Defn: The act of bedewing; the state of being moistened with de
[Obs.] Chambers.

IRROTATIONAL
Ir`ro*ta"tion*al, a. (Physics)

Defn: Not rotatory; passing from one point to another by a movement other than rotation; — said of the movement of parts of a liquid or yielding mass. Sir W. Thomson.

IRRUBRICAL
Ir*ru"bric*al, a.