ef*fu"sive(?), a. 1. Pouring out; pouring forth freely. [archaic] "Washed with the effusive wave." Pope.
(Geol.) formed by an outpouring of molten lava, or pertaining to rocks so formed.
3. overly demonstrative; expressing emotion in an unrestrained manner; exhibiting unrestrained enthusiasm; -- of people and human actions; as,
effusive thanks; an
effusive letter of recommendation. Contrasted with
Syn. -- gushing, gushy, burbling, burbly. [PJC]
Effusive rocks (Geol.), volcanic rocks formed by a nonexplosive outpouring of lava in molten or plastic form; in distinction from so-called intrusive, or plutonic, rocks.
adv. -- Ef*fu"sive*ness,
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Wed 20th February 2019