A Dutch-American surname from Dutch [in turn originating as a patronymic], anglicized from Dutch Coenraad, Koenraadt.

(Britain, slang) Synonym of bottom: a homosexual man who is penetrated or prefers to be penetrated during anal sex. / Used other than figuratively or idiomatically: see shirt, lifter.

(biochemistry) The reaction of a protein and a flavin to form a flavoprotein

Any substance which inhibits cell growth and multiplication.