histogen

noun

his·​to·​gen

-təjə̇n,

-ˌjen

plural -s

: a zone or clearly delimited region of primary tissue in or from which the specific parts of a plant organ are believed to be produced see dermatogen, periblem, plerome, histogen theory compare calyptrogen, corpus, tunica

Word History

Etymology

International Scientific Vocabulary hist- + -gen

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