dichotomous key

dichotomous key
biology : a key to classification based on a choice between two alternative characters

Useful english dictionary. 2012.

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  • dichotomous key — n a key for the identification of organisms based on a series of choices between alternative characters …   Medical dictionary

  • dichotomous key — noun Date: circa 1889 a key for the identification of organisms based on a series of choices between alternative characters …   New Collegiate Dictionary

  • dichotomous key — an identification key using a series of alternative choices, each pair forming a couplet, that eventually lead to a species identity; the usual form of keys for fish identification …   Dictionary of ichthyology

  • dichotomous key — noun A written tool for identification of plants and animals. It is written as a sequence of paired questions, the choice of which determines the next pair of questions until a name or identification is reached. Syn: identification key …   Wiktionary

  • dichotomous key —   Structured system of deducing the correct species assignment among a number of related species, also known as a diagnostic or taxonomic key …   Expanded glossary of Cycad terms

  • key —   See dichotomous key …   Expanded glossary of Cycad terms

  • key — n. [ME. key] A tabulation of diagnostic characters of organisms most often in dichotomous couplets facilitating rapid identification …   Dictionary of invertebrate zoology

  • Single-access key — A key in Biology is a modeling method used for categorizing species using logical choices. A single access key (Dichotomous key also called sequential key , analytical key [1], or pathway key ) is a key where the sequence and structure of… …   Wikipedia

  • identification key — a tabulation of characters used to identify a species. Two rubrics form a couplet, the usual arrangement of keys. Each couplet gives an alternative set of characters leading to the species identity or to the next couplet. Artificial key, q.v.,… …   Dictionary of ichthyology

  • Multi-entry key — In biology or medicine, a multi entry key is an identification key that allows the free choice of characters only in the first step. Whereas in a typical multi access key the choice of characters used for identification can be repeated multiple… …   Wikipedia

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