from The American Heritage® Dictionary of the English Language, 4th Edition
- n. An enclosing membrane, as that covering the sorus of a fern.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A protecting membrane, especially that covering the developing spores of a fern
from the GNU version of the Collaborative International Dictionary of English
- n. A collection of hairs united so as to form a sort of cup, and inclosing the stigma of a flower.
- n. The immediate covering of the fruit dots or sori in many ferns, usually a very thin scale attached by the middle or side to a veinlet.
- n. A peculiar covering found in certain fungi.
from The Century Dictionary and Cyclopedia
- n. In Roman antiquity, one of the two tunics commonly worn by both men and women, probably the outer tunic, though some archæologists have contended that it was the inner tunic of the women.
- n. In botany:
- n. In entomology, the coat or covering of a larval insect, as the case of a caddis-worm.
- n. In anatomy, the amnion, the innermost membrane enveloping the fetus.
- n. A layer of gray matter covering the corpus callosum in the brain: also indusium griseum.
- n. One of the embryonic envelops developed, in addition to the amnion and serosa in certain insects, such as the
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a membrane enclosing and protecting the developing spores especially that covering the sori of a fern
Latin, tunic, perhaps alteration of Greek endusis, dress, from enduein, to sink into, put on : en-, in; see en-2 + duein, to sink.(American Heritage® Dictionary of the English Language, Fourth Edition)