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dichotomous key
noun
: a key for the identification of organisms based on a series of choices between alternative characters
Word History
First Known Use
circa 1889, in the meaning defined above
Time Traveler
The first known use of dichotomous key was
circa 1889
Dictionary Entries Near dichotomous key
Cite this Entry
“Dichotomous key.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/dichotomous%20key. Accessed 5 Oct. 2024.
Kids Definition
dichotomous key
noun
: a series of pairs of phrases or descriptions which are used to classify a group of living things by making choices between the sets of traits and characters described in each pair
Medical Definition
dichotomous key
noun
: a key for the identification of organisms based on a series of choices between alternative characters
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Merriam-Webster unabridged
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