dichotomous key

noun

Definition of dichotomous key

: a key for the identification of organisms based on a series of choices between alternative characters

First Known Use of dichotomous key

circa 1889, in the meaning defined above

Keep scrolling for more

Learn More About dichotomous key

Time Traveler for dichotomous key

Time Traveler

The first known use of dichotomous key was circa 1889

See more words from the same year

Dictionary Entries Near dichotomous key

dichotomous

dichotomous key

dichotomy

See More Nearby Entries 

Statistics for dichotomous key

Cite this Entry

“Dichotomous key.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/dichotomous%20key. Accessed 20 May. 2022.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

More Definitions for dichotomous key

dichotomous key

noun

Medical Definition of dichotomous key

: a key for the identification of organisms based on a series of choices between alternative characters

WORD OF THE DAY

Test Your Vocabulary

Name That Food

  • a-light
  • Name these cookies!
True or False

Test your knowledge - and maybe learn something along the way.

TAKE THE QUIZ
Universal Daily Crossword

A daily challenge for crossword fanatics.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!