[his-tuh-juh n, -jen]

noun Botany.

a region in a plant in which tissues differentiate.

Origin of histogen

First recorded in 1920–25; histo- + -gen
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for histogen

Historical Examples of histogen

British Dictionary definitions for histogen



(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 layersSee 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