mesarch

[ mez-ahrk, mes-, mee-zahrk, -sahrk ]
/ ˈmɛz ɑrk, ˈmɛs-, ˈmi zɑrk, -sɑrk /

adjective

Botany. (of a primary xylem or root) developing from both the periphery and the center; having the older cells surrounded by the younger cells.
Ecology. (of a sere) originating in a mesic habitat.

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Origin of mesarch

First recorded in 1890–95; mes- + -arch
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for mesarch

British Dictionary definitions for mesarch

mesarch
/ (ˈmɛsɑːk) /

adjective

botany (of a xylem strand) having the first-formed xylem surrounded by that formed later, as in fern stemsCompare exarch 2, endarch

Word Origin for mesarch

C19: from mes (o)- + Greek arkhē beginning
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