释义 |
grad·o·col membrane noun also grad·a·col membrane \ˈgradəˌkȯl-, -käl-\ Etymology: German gradokol, from grado- (from International Scientific Vocabulary grade) + kollodium collodion : 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) |