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(trĭk′ōm′, trī′kōm′)
A hairlike or bristlelike, sometimes glandular, outgrowth from the epidermis of a plant.

[Greek trikhōma, growth of hair, from trikhoun, to cover with hair, from thrix, trikh-, hair, of unknown origin.]
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.


(ˈtraɪkəʊm; ˈtrɪk-)
1. (Botany) any hairlike outgrowth from the surface of a plant
2. (Botany) any of the threadlike structures that make up the filaments of blue-green algae
[C19: from Greek trikhōma, from trikhoun to cover with hair, from thrix a hair]
trichomic adj
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈtrɪk oʊm, ˈtraɪ koʊm)

1. a hairy outgrowth on a plant's surface, as a prickle.
2. a microorganism composed of many filamentous cells arranged in strands or chains.
[1870–75; < Greek tríchōma growth of hair. See tricho-, -oma]
tri•chom•ic (trɪˈkɒm ɪk, -ˈkoʊ mɪk) 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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The density of gazelles was positively associated with three species of bushes (Astragalus spp., Ebenus stellata, Achillea eriophora, P<0.01, P<0.05, P<0.05 respectively) and two species of grass (Poa bulbosa and Aegilops umbellulata, P<0.05) and negatively associated with trichomic Helichrysum leucocephalum (P<0.01), thorny Scariola orientalis (P<0.01), as well as both trichomic and thorny Centaurea virgata (P<0.01).
1), higher densities of trichomic Helichrysum and thorny Scariola (Fig.
This study shows that gazelles use habitats 5, 4, 3, 2 and 1 during Autumn and Winter and they occur in higher densities in habitat 5, 4, 3 and 2 which provide more food, shelter and resting place together, while they show lower use of habitat 1 which has fewer food sources, shelter and resting place and the largest number of trichomic and thorny plants including Helichrysum, Scariola, and Centaurea.