'Irrigate' definitions:

Definition of 'irrigate'

From: WordNet
verb
Supply with water, as with channels or ditches or streams; "Water the fields" [syn: water, irrigate]
verb
Supply with a constant flow or sprinkling of some liquid, for the purpose of cooling, cleansing, or disinfecting; "irrigate the wound"

Definition of 'Irrigate'

From: GCIDE
  • Irrigate \Ir"ri*gate\, v. t. [imp. & p. p. Irrigated; p. pr. & vb. n. Irrigating.] [L. irrigatus, p. p. of irrigare to irrigate: ir- in + rigare to water; prob. akin to E. rain. See Rain.] [1913 Webster]
  • 1. To water; to wet; to moisten with running or dropping water; to bedew. [1913 Webster]
  • 2. (Agric.) To water, as land, by causing a stream to flow upon, over, or through it, as in artificial channels. [1913 Webster]
  • 3. (Med.) To rinse (a wound, infected area, etc.) with a flow or spray of a liquid. [PJC]