zootaxy (?z????tæks?) nthe science of the classification of animalsCollins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014zootaxyzoological classification; the scientific classification of animals.See also: Animals, Classification, Zoology-Ologies & -Isms. Copyright 2008 The Gale Group, Inc. All rights reserved.