uninomial

noun
uni·no·mi·al | \ ¦yü-nə-¦nō-mē-əl \
plural uninomials

Definition of uninomial 

: a taxonomic name (such as the name of a biological species) consisting of only a single word or term : monomial Switching binomials to uninomials would require rewriting countless classifications, textbooks, and field guides. —Marc Ereshefsky, in Philosophy of Biology, 2007

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First Known Use of uninomial

1935, in the meaning defined above

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The first known use of uninomial was in 1935

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