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calyptrogen

[kuh-lip-truh-juh n] /kəˈlɪp trə dʒən/
noun, Botany.
1.
the histogen layer that develops into the root cap.
Origin of calyptrogen
1880-1885
1880-85; calyptro- (combining form of calyptra) + -gen
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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British Dictionary definitions for calyptrogen

calyptrogen

/kəˈlɪptrədʒən/
noun
1.
a layer of rapidly dividing cells at the tip of a plant root, from which the root cap is formed. It occurs in grasses and many other plants
Word Origin
C19: from calyptra + -gen
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
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