(thermodynamics) A measure of a material's ability to exchange thermal energy with its surroundings; the square root of the product of its thermal conductivity and its volumetric heat capacity.

plural of effusion

Third-person singular simple present indicative form of effuse

present participle of effuse

simple past tense and past participle of effuse

Gushy; unrestrained, extravagant or excessive (in emotional expression). / (archaic) Pouring, spilling out freely; overflowing.

A liquid outpouring. / (chemistry) Process of gases passing through a hole or holes considerably smaller than the mean free path of the gas molecules.

In an effusive manner.

Poured out freely; profuse. / Disposed to pour out freely; prodigal. / (botany) Spreading loosely, especially on one side.

(obsolete) effusion; loss