(physics) A topological structure made out of two-dimensional faces that represents one of the configurations that must be summed to obtain a Feynman's path integral description of quantum gravity.

Foam consisting of polyurethane and other chemicals used in the manufacturing of pillows, mattresses, laptop sleeves, etc, which reacts to body heat and molds to the shape of the body.

(physics) Spacetime viewed on a quantum level, i.e. as a "foam" of randomly appearing and disappearing Planck-scale wormholes (black holes and white holes).

A mixture of highly tacky and/or tenacious materials, carried in compressed form with a propellant and used as an incapacitant.

plural of foam rubber

Any substance that will produce a foam under specified conditions

Expanded latex. / (informal) Expanded polyurethane, the padding often used in cars and furniture.

simple past tense and past participle of foam at the mouth

present participle of foam at the mouth

present participle of foam up