On the wing. (a) Supported by, or flying with, the wings another. On the wings of the wind, with the utmost velocity. Under the wing, or wings, of, under the care or protection of. Wing and wing (Naut.), with sails hauled out on either side; -- said of a schooner, or her sails, when going before the wind with the foresail on one side and the mainsail on the other; also said of a square-rigged vessel which has her studding sails set. Cf. Goosewinged. Wing case (Zo["o]l.), one of the anterior wings of beetles, and of some other insects, when thickened and used to protect the hind wings; an elytron; -- called also wing cover}. Wing covert (Zo["o]l.), one of the small feathers covering the bases of the wing quills. See Covert, n., 2. Wing gudgeon (Mach.), an iron gudgeon for the end of a wooden axle, having thin, broad projections to prevent it from turning in the wood. See Illust. of Gudgeon. Wing shell (Zo["o]l.), wing case of an insect. Wing stroke, the stroke or sweep of a wing. Wing transom (Naut.), the uppermost transom of the stern; -- called also main transom. --J. Knowles.

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