vampire bat

noun
  1. any of several New World tropical bats of the genera Desmodus, Diphylla, and Diaemus, the size of a small mouse, feeding on small amounts of blood obtained from resting mammals and birds by means of a shallow cut made with specialized incisor teeth.
  2. any of several large South American bats of the genera Phyllostomus and Vampyrus, erroneously believed to feed on blood.
  3. false vampire.

Origin of vampire bat

First recorded in 1780–90
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for vampire bat

vampire bat

noun
  1. any bat, esp Desmodus rotundus, of the family Desmodontidae of tropical regions of Central and South America, having sharp incisor and canine teeth and feeding on the blood of birds and mammalsCompare false vampire
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012