noun
a word that is repeated in a scientific name to indicate the genus and species are the same
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A tautonym is a scientific term used to describe a taxonomic name in which the genus and species names are identical.
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I just learned about tautonyms in my biology class - it's when the scientific names are the same!
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Tautonyms are like having a first name and last name that are exactly the same.
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Using a tautonym in writing can create a sense of symmetry and balance within the text.