vampire Definition

the reanimated body of a dead person believed to come from the grave at night and suck the blood of persons asleep

one who lives by preying on others

a woman who exploits and ruins her lover

any of several bats (Desmodus rotundus, Diaemus youngi, and Diphylla ecaudata of the subfamily Desmodontinae of the family Phyllostomidae) of Mexico and Central and South America that feed on the blood of birds and mammals and especially domestic animals and that are sometimes vectors of disease and especially of rabies; also : any of several other bats (as of the families Megadermatidae and Phyllostomidae) that do not feed on blood but are sometimes reputed to do so