gradocol membrane

noun

grad·​o·​col membrane

variants or less commonly gradacol membrane

ˈgradəˌkȯl-,

-käl-

: a collodion membrane prepared from a solution of collodion in alcohol and ether in such a way as to have a predetermined average pore diameter and used especially in ultrafiltration (as of a virus suspension)

Word History

Etymology

German gradokol, from grado- (from International Scientific Vocabulary grade) + kollodium collodion

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