" cell foam "

[Noun]  | "cell foam" 

1: a lightweight foam resulting from the introduction of gas bubbles during manufacturing: such as

2: closed cell foam

3: open cell foam

Origin: 1954 ;

[Noun]  | "closed cell foam" 

1: a stiff, dense foam resulting from the introduction of gas bubbles during manufacturing in which the air bubbles are completely enclosed and not connected to surrounding air bubbles

Origin: 1955 ;

[Noun]  | "open cell foam" 

1: a spongy foam resulting from the introduction of gas bubbles during manufacturing in which the air bubbles are connected to surrounding air bubbles

Origin: 1956 ;