1. Watered; watery; moist; dewy. [Obs.] The flowery lap Of some irriguous valley spreads her store. Milton.
2. Gently penetrating or pervading. [Obs.] J. Philips.
IRRISIBLE
Ir*ris"i*ble, a. Etym: [Pref. ir- not + risible. See Irrision.]
Defn: Not risible. [R.]
IRRISION Ir*ri"sion, n. Etym: [L. irrisio, fr. irridere, irrisum. to laugh at; pref. ir- in + ridere to laugh: cf. F. irrision.]
Defn: The act of laughing at another; derision.
This being spoken scepticè, or by way of irrision. Chapman.
IRRITABILITY
Ir`ri*ta*bil"i*ty, n. Etym: [L. irritabilitas: cf. F. irritabilité.]
1. The state or quality of being irritable; quick excitability; petulance; fretfulness; as, irritability of temper.
2. (Physiol.)
Defn: A natural susceptibility, characteristic of all living organisms, tissues, and cells, to the influence of certain stimuli, response being manifested in a variety of ways, — as that quality in plants by which they exhibit motion under suitable stimulation; esp., the property which living muscle processes, of responding either to a direct stimulus of its substance, or to the stimulating influence of its nerve fibers, the response being indicated by a change of form, or contraction; contractility.