Definify.com

Webster 1913 Edition

Noun.

[L.

despumatio

: cf. F.

despumation

The act of throwing up froth or scum; separation of the scum or impurities from liquids; scumming; clarification.

Noun.

The act of throwing off excrementitious matter and forming a froth or scum on the surface of liquor; clarification; scumming.

despumation ‎(plural despumations)