I. i-ˈfyüz, e- verb
( ef·fused ; ef·fus·ing )
Etymology: Latin effusus, past participle of effundere, from ex- + fundere to pour — more at found
Date: 1526
transitive verb
: to pour out (a liquid)
intransitive verb
1. : to flow out : emanate
2. : to make a great or excessive display of enthusiasm
they effused about his accomplishments
II. -ˈfyüs adjective
Date: circa 1530
: diffuse ; specifically : spread out flat without definite form
effuse lichens