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A taxonomic designation, such as Gorilla gorilla, in which the genus and species names are the same, commonly used in zoology but no longer in botany.

tau·ton′y·mous (tô-tŏn′ə-məs) adj.
tau·ton′y·my n.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(Biology) biology a taxonomic name in which the generic and specific components are the same, as in Rattus rattus (black rat)
[C20: from Greek tautonymos. See tauto-, -onym]
ˌtautoˈnymic, tautonymous adj
tauˈtonymy n
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈtɔ tə nɪm)

a scientific name in which the generic and the specific names are the same, as Tyrannus tyrannus (the eastern kingbird).
[1895–1900; < Greek tautṓnymos of the same name =tauto- tauto- + -ōnymos named]
tau•ton′y•my, n.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.


a botanical or zoological name in which the two terms, the generic name and the specific, are the same (a practice no longer approved by the International Code of Botanical Nomenclature). — tautonymic, tautonymous, adj.
See also: Classification
a botanical or zoological name in which two terms are combined, the generic name and the specific, with both being the same. (a practice no longer approved by the International Code of Botanical Nomenclature.)
See also: Botany, Names
-Ologies & -Isms. Copyright 2008 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
Reduplication is a most common name for the morphological process also referred to as cloning, doubling, repetition, and tautonym of words, (Wikipedia, retrieved 5/8/2015).
Another possible phonic-only tautonym except that Im notsure of the pronunciation, is the Thai top-100 woman tennis playerLuksika Kumkhum.
A numerical tautonym is traditionally defined as a word which can be divided into a sequence of at least two (adjacent) parts, where each part has both the same number of letters as well as the same alphabetic value sum (see David Morice, The Dictionary of Wordplay).
Similarly, GAR.DEN is a Scrabble Tautonym (211.211 ), whilst RU.IN (11.11 ) is both a Scrabble Palindrome and a Scrabble Tautonym.
Some zoological names of species consist of two identical and are known as tautonyms. For some reason, I have always found them amusing.
They're not tautonyms but are word and letter "flip" tautonyms.
Synonyms and Homonyms Meaning of Authors name in brackets The Law of Priority Rejection of names Names of hybrid Plants Tautonyms Nomen novum or Replacement name Preoccupied names BIOCODE THE TYPE AND ITS IMPORTANCE Kinds of Types Type designation CHAPTER 8--PUBLICATION KINDS OF PUBLICATIONS 1.
As before, Noah turns away hyphenated words, coinages, palindromes, tautonyms and pair isograms.
But there is a third variety as well: Words with an even number of letters which are decomposable into two-part tautonyms (e.g.
The first 10x10 word square, which appeared in 1921, was constructed entirely of tautonyms (words like TANGATANGA, which have two repeated five-letter parts) and so is not very satisfying.
* * * Back to Susan's 15-169 article, her 'tautophones' as an alternative to 'nautonyms' fails because it also encompasses most true (letteral) tautonyms and doesn't indicate that nautonyms are not.
This story began over a year ago on page 106 of the May 2014 issue of Word Ways when Anil challenged me to find what he called NAUTONYMS, "sounded but not spelled tautonyms like RETREAT".