foam

Noun
  1. A mass of small bubbles formed in or on a liquid (synset 109305630)
    "the beer had a thick head of foam"
    is a type of: bubble - a hollow globule of gas (e.g., air or carbon dioxide)
    subtypes:
    • shaving foam - toiletry consisting of a liquid preparation containing many small bubbles that soften the beard before shaving
    • head - the foam or froth that accumulates at the top when you pour an effervescent liquid into a container
    • lather - the foam resulting from excessive sweating (as on a horse)
    • lather, soapsuds, suds - the froth produced by soaps or detergents
    • spume - foam or froth on the sea
    • white water, whitewater - frothy water as in rapids or waterfalls
    same as: froth
  2. A lightweight material in cellular form;
    Made by introducing gas bubbles during manufacture (synset 114896848)
    is a type of: material, stuff - the tangible substance that goes into the makeup of a physical object
    subtypes:
    • styrofoam - a light resilient foam of polystyrene
    • foam rubber - spongy rubber; made by introducing air bubbles before vulcanization and used for cushioning or upholstery
Verb
  1. Become bubbly or frothy or foaming (synset 200520443)
    "The boiling soup was frothing"; "The river was foaming"; "sparkling water"
    is a type of: bubble - form, produce, or emit bubbles
    subtypes:
    same as: effervesce, fizz, form bubbles, froth, sparkle

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