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histogen

American

[his-tuh-juhn, -jen] / ˈhɪs tə dʒən, -ˌdʒɛn /

noun

Botany.

a region in a plant in which tissues differentiate.

histogen British

/ ˈhɪstəˌdʒɛn /

noun

(formerly) any of three layers in an apical meristem that were thought to give rise to the different parts of the plant: the apical meristem is now regarded as comprising two layers See corpus tunica

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of histogen

First recorded in 1920–25; histo- + -gen

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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023