Ef*fu"sive (?), a.

Pouring out; pouring forth freely.

"Washed with the effusive wave."

Pope.

Effusive rocks Geol., volcanic rocks, in distinction from so-called intrusive, or plutonic, rocks.

-- Ef*fu"sive*ly, adv. -- Ef*fu"sive*ness, n.

 

© Webster 1913.

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