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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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Entered into a binding term sheet agreement with Opaskwayak Cree Nation ('OCN') for C$12 million in debt financing; The Company's subsidiary Trichome Financial ('Trichome') and 22 Capital Corp.
adenotrichos: The intense blue coloration upon exposure of GT to the Prussian blue reagent suggested the presence of phenolic compounds in the trichome secretion (Fig.
Inheritance of type IV glandular trichome density and its association with whitefly resistance from Solanum galapagense accession LA1401.
In paradermal sections, the density (number of analyzed structures/area) and relative frequency (number of structures analyzed/total epidermal cells) of trichomes, trichome scars and stomata were quantitatively examined (n = 30).
Morphology of epidermal cells, stomata, and trichome types have been used as systematic characters and a combination of some of these features is relevant especially to the identification of species within the tribe Mentheae (subfamily Nepetoideae) in Labiatae family [9].
Background and Aims: A study of trichome complements in Senecio section Mulgediifolii using light and scanning electron microscopy was carried out, with the aim of distinguishing characters that contribute to identify their species.
Trichome exudates and resistance to beet armyworm (Lepidoptera, Noctuidae) in Lycopersicon hirsutum f.
(2008) who reported that trichome density has negative correlation with the population of leafhopper (Amrasca biguttula biguttula) on the brinjal crop.
Intrusive trichome bases in the leaves of silverleaf nightshade (Solanum elaeagnifolium, Solanaceae) do not facilitate fluorescent tracer uptake.
The pin point objectives of the current study were to (1) observe quantitative and qualitative features of leaf epidermal cells (2) compare the variation of different stomatal types and trichomes in the selected species (3) elaborate the taxonomic value of foliar epidermal anatomical characters based on trichome morphology, stomata and epidermal cells diversity.