a barrier constructed to hold back water and raise its level, forming a reservoir used to generate electricity or as a water supply
the dam burst after torrential rain
the Hoover Dam
a rubber sheet used to keep saliva from the teeth during dental operations, or as a prophylactic device during cunnilingus and anilingus
the female parent of an animal, especially a domestic mammal
one version is inherited from the dog's sire and one from its dam
his dam was a pinto mare