Defn: That has no finite period of revolution; not revolving. [R.]
The dateless and irrevocable circle of eternity. Milton.

IRRHETORICAL
Ir`rhe*tor"ic*al, a.

Defn: Not rethorical.

IRRIGATE
Ir"ri*gate, v. t. [imp. & p. p. Irrigated; p. pr. & vb. n.
Irrigating.] Etym: [L. irrigatus, p. p. of irrigare to irrigate: ir-
in + rigare to water; prob. akin to E. rain. See Rain.]

1. To water; to wet; to moisten with running or dropping water; to bedew.

2. (Agric.)

Defn: To water, as land, by causing a stream to flow upon, over, or through it, as in artificial channels.

IRRIGATION
Ir`ri*ga"tion, n. Etym: [L. irrigatio: cf. F. irrigation.]

Defn: The act or process of irrigating, or the state of being irrigated; especially, the operation of causing water to flow over lands, for nourishing plants.

IRRIGUOUS
Ir*rig"u*ous, a. Etym: [L. irriguus. See Irrigate.]