Meaning of FOAM in English

I. ˈfōm noun

( -s )

Etymology: Middle English fom, fome, foom, from Old English fām; akin to Old High German feim foam, Norwegian feim coating, Latin spuma foam, pumex pumice, Sanskrit phena foam

1. : a light whitish mass of fine bubbles that is formed in or on the surface of a liquid by agitation (as of ocean waves) or fermentation or effervescence : a dispersion of a gas or vapor in a liquid : froth , spume — compare emulsion 2a

2. : the froth formed in the mouth of an animal by salivation or on the skin (as of a horse) by sweating

3. : sea

4. : something like foam

a fine foam of lace at his wrists and throat — Max Peacock

5. : a stabilized frothy substance generated either by a chemical reaction or by mechanical agitation for use in fighting especially gasoline and oil fires by blanketing and smothering them

6. : material in a lightweight cellular spongy or rigid form produced by foaming: as

a. : foam rubber

b. : expanded plastic

II. verb

( -ed/-ing/-s )

Etymology: Middle English fomen, from fom, fome, n.

intransitive verb

1. : to gather or form foam

2. : to froth at the mouth in anger : be angry : rage

he foamed and stormed and threatened

3. : to gush out in foam

blood foaming from his mouth

4. : to form a froth or scum on the water surface that entrains solids and prevents the liberation of steam — used of a steam boiler

transitive verb

1. : to cause to foam : cover with foam ; specifically : to cause air bubbles to form in (as concrete, mortar, or plaster)

2. : to introduce gas bubbles into (as a plastic or resin) in order to form a lightweight cellular material : expand , whip

plastic is foamed in place in a sandwich construction

Webster's New International English Dictionary.      Новый международный словарь английского языка Webster.