from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A hairlike or bristlelike outgrowth, as from the epidermis of a plant.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A hair- or scale-like extension of the epidermis of a plant.
- n. Hairlike structures found in some microscopic organisms and algae.
- n. A row of cells formed by successive cell divisions.
from the GNU version of the Collaborative International Dictionary of English
- n. A hair on the surface of leaf or stem, or any modification of a hair, as a minute scale, or star, or gland. The sporangia of ferns are believed to be of the nature of trichomes.
from The Century Dictionary and Cyclopedia
- n. An outgrowth from the epidermis of plants, as a hair, scale, bristle, or prickle. These may be very various in form and function, but morphologically they have a common origin.
Greek trikhōma, growth of hair, from trikhoun, to cover with hair, from thrix, trikh-, hair.(American Heritage® Dictionary of the English Language, Fourth Edition)