Page:Dictionary of aviation.djvu/281

 DICTIONARY OF AVIATION 257

windy 'windi adj. consisting ef, next to, characterized

by, or resembling wind.

windy-weep 'wmdi/wiip n. a gentle evening breeze which issues with a weeping or sighing sound from a forest or ravine upon a broad quiet river.

wind-zone 'wmd,zoon n. a zone, belt, or region in which a certain type of wind prevails; the region of the under;; winds, or of the upper^winds. wring wirj n.

i. the fore^hm of a bird, bat, or other vertebrate ani- mal (homologous with the human arm), fitted in any way for flight or aerial locomotion, or even, sometimes, when net so fitted; also, a similar appendage in insects, having a similar function : sometimes used figurativly.

ample wing, see ample.

angle of the wing, the carpal angle of a bird's wing; the bend of the wing; the bend; the flexure.

anterior wing, (in entomology) one of the front upper wings of an insect which has two pairs of wings; a fore? wing; a mesothoracic wing; a superior wing.

archt wing, a wing having an archt form; a bow^shaped wing.

bastard wing, the winglet or alula of a bird's wing; the spurious wing; the ala spuria.

convoluted wings, (in entomology) wings which in repose embrace the body of the insect from above downward, in- closing it as in a tube.

dejlexed wings, (in entomology) wings which in repose cover the bedy of the insect like a roof, the internal edges of the primaries meeting, and the surfaces sloping down en both sides, as in many moths and homepters.

dentate wing, a wing with dentate or tootht margin; a wing with a netcht edge.

digitate wing, (in entomology) a wing divided into finger* like radii, as in many pterofendae, by incisions extending from the margin of the wing, between the veins or ner- vures, toward the base.

divergent wings, (in entomology) wings which in repose are horizontal but spred apart receding from the abdomen, as in many flies.

erect tvings (in entomology) wings which in repose are held erect or upright over the bedy when the insect rests, as in most butterflies; vertical wings.

expanse of wing, the expanse, extent, or spred of wing; the tip^to^tip mesurement of the extended wings; stretch of wing; alar expanse; alar extent; wing^spred (sense l).

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