[ en-doh-thee-shee-uhm, -see-uhm ]
/ ˌɛn doʊˈθi ʃi əm, -si əm /
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noun, plural en·do·the·ci·a [en-doh-thee-shee-uh, -see-uh]. /ˌɛn doʊˈθi ʃi ə, -si ə/. Botany.
the lining of the cavity of an anther.
(in mosses) the central mass of cells in the rudimentary capsule, from which the archespore is generally developed.
(in bryophytes) the central mass of cells in the capsule, including the spores and columella.
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Origin of endothecium

First recorded in 1825–35; endo- + thecium

OTHER WORDS FROM endothecium

en·do·the·ci·al [en-doh-thee-shee-uhl, -shuhl, -see-uhl], /ˌɛn doʊˈθi ʃi əl, -ʃəl, -si əl/, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

British Dictionary definitions for endothecium

/ (ˌɛndəʊˈθiːʃɪəm, -sɪəm) /

noun plural -cia (-ʃɪə, -sɪə) botany
the inner mass of cells of the developing capsule in mosses
the fibrous tissue of the inner wall of an anther

Derived forms of endothecium

endothecial, adjective

Word Origin for endothecium

C19: New Latin, from endo- + Greek thēkion case; see theca
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