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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 ?
In the present study, a new type of glandular trichome is reported for Connarus suberosus, and provide information about their localization, development, structure, and ultra-structural and histochemical aspects, to support discussions concerning their functions.
The sheath often projects beyond the trichome and cylindrical with rounded apex.
To test internal factors affecting developmental deficiencies, the team also investigated what would happen if the secondary enhancers for the shavenbaby gene were removed from fruit fly embryos that had a mutation in another gene involved in trichome development.
Bromeliads appear to have begun invading drier areas in Central and South America beginning roughly 15 million years ago, at the same time as bromeliads underwent a major adaptive radiation involving the repeated evolution of epiphytism, CAM photosynthesis, impounding leaves, several features of leaf and trichome anatomy, and an accelerated rate at which new genera subsequently appeared.
Classification of trichome types within species of the water fern Salvinia and ontogeny of the egg-beater trichomes.
that can be trapped by trichome exudates, or have their walking speed reduced on such surfaces (ROMEIS et al.
The leaf lamina was 120 hum thick and had thin epidermal layer which enlarged into conical lump bearing the trichome, whereas those leaves in open condition had thick leaf lamina (Fig 2).
At 12 DAE, trichome density was recorded on central portion of the fifth leaf (from the base) from three seedlings in each genotype at random.
In a preferred embodiment, the plant is Arabidopsis and the morphological marker is Gl1, which is associated with trichome production on plant leaves.
Microscopic analysis of the abaxial leaf surface cuticular feature data from the three plant populations revealed that stomatal frequency and trichome length were inconsistent.