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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.]


(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


(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.
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References in periodicals archive ?
05) and negatively associated with trichomic Helichrysum leucocephalum (P<0.
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.