idioblast

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id·i·o·blast

 (ĭd′ē-ə-blăst′)
n.
A plant cell that differs noticeably in form from neighboring cells.

id′i·o·blas′tic adj.
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.

idioblast

(ˈɪdɪəʊˌblæst)
n
(Biology) a plant cell that differs from those around it in the same tissue
ˌidioˈblastic adj
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

id•i•o•blast

(ˈɪd i əˌblæst)

n.
a plant cell that differs greatly from the surrounding cells or tissue.
[1880–85]
id`i•o•blas′tic, 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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"Idioblastic" axial parenchyma cells are reported in Dinizia (Fabaceae) by Evans et al.
Fluorapatite (<1%) occurs as small grains (up to 250 [micro]m) are usually idioblastic and closely associated with Ti-clinohumite grains and clinochlore (Figures 7, 8a).
It is not only the grain size but also the grain size distribution that is important, with the effect that a large size range gives higher strength and better resistance to fragmentation and wear compared to a more equigranular or idioblastic rock (Lindqvist et al., 2007).