Generating Inbred Mice. Inbred Strains. A strain is defined as inbred when it has been mated brother x sister for 20 or more consecutive generations (F20). All offspring can be traced back to a single ancestral breeding pair in the 20th or subsequent generation.
suction head. The energy per unit weight of fluid on the suction side of a pump. 1  Facebook.
Wiktionary(2.00 / 1 vote)Rate this definition: 1  sanction(Noun) An approval, by an authority, generally one that makes something valid. 2  sanction(Noun) A penalty, or some coercive measure, intended to ensure compliance; especially one adopted by several nations, or by an international body.