Key

(kē),

Ernst A.H., Swedish anatomist and physician, 1832-1901. See: foramen of Key-Retzius, sheath of Key and Retzius.

Farlex Partner Medical Dictionary © Farlex 2012

key

a character of special significance in an organism. Such characters are used in a system for determining the identity of an organism on the basis of the presence or absence of a succession of characters. Usually such keys are DICHOTOMOUS (2); that is to say, at each step there is a choice between two possibilities. Keys, however, may have more than two characters at each step and there is a gradual elimination of absent characters until identification is made.

Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005

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References in periodicals archive

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