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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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(CSE: CNVC) ('CannaVcell') announces today it has reached a significant milestone of having Cannabis trichomes at the suspension phase.
- August 26, 2019) - Canna-V-Cell Sciences Inc.0x20 (CSE: CNVC) ("CannaVcell") announces today it has reached a significant milestone of having Cannabis trichomes at the suspension phase.
In a study examining pests of tobacco plants and opportunistic insects that eat the pests, researchers show that sticky glandular trichomes on tobacco leaves trap insects that aren't adapted to interacting with perilous plant surfaces.
Numerous sticky plants have glandular trichomes (GTs) that secrete viscous-adhesive fluids to entrap insects and other arthropods (Wheeler & Krimmel, 2015).
The presence or absence of acule and domatia (GONCALVES & LORENZI, 2007) and trichomes and types of tricoma and indument (BEENTJE, 2016) were evaluated according to the literature.
The same plants were used to quantify the levels of acylsugar, foliar trichomes and the performance of the South American tomato pinworm and tomato leaf miner repellency test.
Other examples that undergo modifications in the aforementioned conditions are the greater thickness of the cuticle on the adaxial face and numerous trichomes on the abaxial side (ESPOSITO-POLESI et al., 2011).
3e) presents glandular and non-glandular trichomes, which is not observed in mature stems.
The floral tissues producing these scents include nectaries, glandular trichomes, eliaphores and osmophores.
On the upper and lower epidermis, there are one-celled eglandular trichomes and multi-celled glandular trichomes.
These groups of pores occur in close association with the bases of multiple trichomes (Gainett et al.