exogen
Americannoun
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Physiology. the fourth and final stage in the hair growth cycle, in which an individual hair is released from the follicle and shed before a new one grows. Compare anagen, catagen, and telogen.
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Botany. a plant that grows by adding to the stem's outside layer, which consists of bark separated by a layer of wood from the inner layer of pith. Exogens are the same as dicotyledons. Contrasts with endogen.
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
