amphithecium

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am·phi·the·ci·um

 (ăm′fə-thē′shē-əm, -sē-əm)
n. pl. am·phi·the·ci·a (-shē-ə, -sē-ə)
The outer layer of cells of the spore-containing capsule of a moss.

[New Latin amphithēcium : amphi- + Greek thēkion, diminutive of thēkē, receptacle; see dhē- in Indo-European roots.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

amphithecium

(ˌæmfɪˈθiːsɪəm)
n, pl -cia (-sɪə)
(Botany) the outer layer of cells of the sporophyte of mosses and liverworts that develops into the outer parts of the spore-bearing capsule
[C19: from New Latin, from amphi- + Greek thēkion a little case, from thēkē case]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

am•phi•the•ci•um

(ˌæm fəˈθi ʃi əm)

n., pl. -ci•a (-ʃi ə)
an outer layer of cells forming a capsule or spore case, as in a moss, lichen, or bryophyte.
[1905–10; < New Latin < Greek amphi- amphi- + thēkíon (thḗk(ē) case, cover + -ion diminutive suffix)]
am`phi•the′cial, adj.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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