Main Entry: ¹foam

Pronunciation: \ˈfōm\

Function: noun

Etymology: Middle English fome, from Old English fām; akin to Old High German feim foam, Latin spuma foam, pumex pumice

Date: before 12th century

1 : a light frothy mass of fine bubbles formed in or on the surface of a liquid or from a liquid: as a : a frothy mass formed in salivating or sweating b : a stabilized froth produced chemically or mechanically and used especially in fighting oil fires c : a material in a lightweight cellular form resulting from introduction of gas bubbles during manufacture
2 : sea
3 : something resembling foam

— foam·less \-ləs\ adjective