American Heritage® Dictionary of the English Language, Fourth Edition
Century Dictionary and Cyclopedia
- n. In arch.:
- n. Any one of the ribs of a groined vault, but especially that part of a rib which forms one of the sides of a compartment of the groining
- n. A projecting molding, particularly if small and acute-angled in profile. Also called nerve.
- n. In botany, a vein or nerve of a leaf.
- n. In entomology, one of the tubes or tubular thickenings which ramify in an insect's wing: a nerve, vein, or costa proceeding along one of certain definite lines, to strengthen the wing and, through a central hollow, to nourish it. The wing is developed as a saclike projection of the body-wall, and is hence composed of two closely applied membranes. The nervures are exactly apposed thickenings of the dorsal and ventral membranes. In most insects a groove extends along the inner surface of the thickening of each wall, forming a tube in the center of each nervure within which the fluids of the body circulate. The larger ones also contain tracheæ. The number of these nervures is greatest and their arrangement is most complicated in some of the Orthoptera and Neuroptera, while they are almost entirely wanting in some of the small Hymenoptera. The nervures furnish important zoölogical characters. See cut in preceding column.
- n. entomology A vein in the wing of an insect.
- n. botany Any of the veins that form the branching framework of conducting and supporting tissues in a leaf or other plant organ.
GNU Webster's 1913
- n. (Bot.) One of the nerves of leaves.
- n. (Zoöl.) One of the chitinous supports, or veins, in the wings of insects.
- n. one of the horny ribs that stiffen and support the wing of an insect
- n. any of the vascular bundles or ribs that form the branching framework of conducting and supporting tissues in a leaf or other plant organ
- From French nervure. (Wiktionary)
- French, from Old French nerveure, strap, from nerf, sinew, from Latin nervus; see nerve. (American Heritage® Dictionary of the English Language, Fourth Edition)
“Reddish yellow, smooth, and shining; the face testaceous, with slight fuscous stains; the scape and two or three of the basal joints of the flagellum yellow in front; the wings hyaline, with a yellowish tinge; the nervures black, except the costal nervure, which is ferruginous towards the base, the apex of the wings slightly clouded; the posterior tibiæ fuscous above.”
“This last nervure, which is of a slightly reddish hue, is the fundamental element of the musical device; it is, in short, the bow, the fiddlestick, as is proved by the fine notches which run across it.”
“Dans la journee je verifie le rouge s'est estompé c qq peu rosé ... et s'estompe les heures passant ... pour ne laisser que deux gross veine rouge et qq nervure sur les coté.”
“Thus in such a tree, which we may truly call “The Tree of Life,” there ought to be the usefulness of the fruit: the beauty of the flower; the vigor of the twigs; the ornament of the leaves; the nervure of the branches, but the whole arising from a single trunk and having its roots, not in the air, but in the profundity of the Word of God.”
“Discocellular nervure or vein: Lepidoptera; = discal vein, q.v. Discoidal: relating to the disc, or middle = discal.”
“Marginal field: in tegmina = costal field: q.v. Marginal nervure or vein: in Orthoptera, = costa (Comst.): in”
“First submarginal cross-nervure: Hymenoptera; part of the media and the radio-medial cross vein (Comst.).”
“First inner apical nervure: in Hymenoptera (Nort.); is cubitus 1, from media 4, to first anal (Comst.).”
“Anterior wings with two submarginal cells and one recurrent nervure.”
“Thorax: coarsely punctured; the mesothorax with an abbreviated deeply impressed line in the middle of its anterior margin; wings fulvo-hyaline, the nervures ferruginous; the apex of the wings slightly fuscous, the anterior pair with two submarginal cells and one recurrent nervure.”
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