on the wing
 在飛翔時,忙忙碌碌
 On prep.  The general signification of on is situation, motion, or condition with respect to contact or support beneath; as: --
 1. At, or in contact with, the surface or upper part of a thing, and supported by it; placed or lying in contact with the surface; as, the book lies on the table, which stands on the floor of a house on an island.
    I stood on the bridge at midnight.   --Longfellow.
 2. To or against the surface of; -- used to indicate the motion of a thing as coming or falling to the surface of another; as, rain falls on the earth.
    Whosoever shall fall on this stone shall be broken.   --Matt. xxi. 44.
 3. Denoting performance or action by contact with the surface, upper part, or outside of anything; hence, by means of; with; as, to play on a violin or piano.  Hence, figuratively, to work on one's feelings; to make an impression on the mind.
 4. At or near; adjacent to; -- indicating situation, place, or position; as, on the one hand, on the other hand; the fleet is on the American coast.
 5. In addition to; besides; -- indicating multiplication or succession in a series; as, heaps on heaps; mischief on mischief; loss on loss; thought on thought.
 6. Indicating dependence or reliance; with confidence in; as, to depend on a person for assistance; to rely on; hence, indicating the ground or support of anything; as, he will promise on certain conditions; to bet on a horse; based on certain assumptions.
 7. At or in the time of; during; as, on Sunday we abstain from labor. See At (synonym).
 8. At the time of; -- often conveying some notion of cause or motive; as, on public occasions, the officers appear in full dress or uniform; the shop is closed on Sundays.  Hence, in consequence of, or following; as, on the ratification of the treaty, the armies were disbanded; start on the count of three.
 9. Toward; for; -- indicating the object of some passion; as, have pity or compassion on him.
 10. At the peril of, or for the safety of. “Hence, on thy life.”
 11. By virtue of; with the pledge of; -- denoting a pledge or engagement, and put before the thing pledged; as, he affirmed or promised on his word, or on his honor.
 12. To the account of; -- denoting imprecation or invocation, or coming to, falling, or resting upon; as, on us be all the blame; a curse on him.
    His blood be on us and on our children.   --Matt. xxvii. 25.
 13. In reference or relation to; as, on our part expect punctuality; a satire on society.
 14. Of. [Obs.] “Be not jealous on me.”
 Or have we eaten on the insane root
 That takes the reason prisoner?   --Shak.
 Note: ☞ Instances of this usage are common in our older writers, and are sometimes now heard in illiterate speech.
 15. Occupied with; in the performance of; as, only three officers are on duty; on a journey; on the job; on an assignment; on a case; on the alert.
 16. In the service of; connected with; a member of; as, he is on a newspaper; on a committee.
 Note: ☞ On and upon are in general interchangeable.  In some applications upon is more euphonious, and is therefore to be preferred; but in most cases on is preferable.
 On a bowline. Naut. Same as Closehauled.
 On a wind, or On the wind Naut., sailing closehauled.
 On a sudden. See under Sudden.
 On board, On draught, On fire, etc. See under Board, Draught, Fire, etc.
 On it, On't, of it. [Obs. or Colloq.] --Shak.
 On shore, on land; to the shore.
 On the road, On the way, On the wing, etc. See under Road, Way, etc.
 On to, upon; on; to; -- sometimes written as one word, onto, and usually called a colloquialism; but it may be regarded in analogy with into.
    They have added the -en plural form on to an elder plural.   --Earle.
    We see the strength of the new movement in the new class of ecclesiastics whom it forced on to the stage.   --J. R. Green.
 Wing n.
 1. One of the two anterior limbs of a bird, pterodactyl, or bat.  They correspond to the arms of man, and are usually modified for flight, but in the case of a few species of birds, as the ostrich, auk, etc., the wings are used only as an assistance in running or swimming.
    As an eagle stirreth up her nest, fluttereth over her young, spreadeth abroad her wings, taketh them, beareth them on her wings.   --Deut. xxxii. 11.
 Note: ☞ In the wing of a bird the long quill feathers are in series. The primaries are those attached to the ulnar side of the hand; the secondaries, or wing coverts, those of the forearm: the scapulars, those that lie over the humerus; and the bastard feathers, those of the short outer digit.  See Illust. of Bird, and Plumage.
 2. Any similar member or instrument used for the purpose of flying.  Specifically: Zool. (a) One of the two pairs of upper thoracic appendages of most hexapod insects.  They are broad, fanlike organs formed of a double membrane and strengthened by chitinous veins or nervures.  (b) One of the large pectoral fins of the flying fishes.
 3. Passage by flying; flight; as, to take wing.
 Light thickens; and the crow
 Makes wing to the rooky wood.   --Shak.
 4. Motive or instrument of flight; means of flight or of rapid motion.
    Fiery expedition be my wing.   --Shak.
 5. Anything which agitates the air as a wing does, or which is put in winglike motion by the action of the air, as a fan or vane for winnowing grain, the vane or sail of a windmill, etc.
 6. An ornament worn on the shoulder; a small epaulet or shoulder knot.
 7. Any appendage resembling the wing of a bird or insect in shape or appearance.  Specifically: (a) Zool. One of the broad, thin, anterior lobes of the foot of a pteropod, used as an organ in swimming.  (b) Bot. Any membranaceous expansion, as that along the sides of certain stems, or of a fruit of the kind called samara.  (c) Bot. Either of the two side petals of a papilionaceous flower.
 8. One of two corresponding appendages attached; a sidepiece.  Hence: (a) Arch. A side building, less than the main edifice; as, one of the wings of a palace.  (b) Fort. The longer side of crownworks, etc., connecting them with the main work.  (c) Hort. A side shoot of a tree or plant; a branch growing up by the side of another.  [Obs.] (d) Mil. The right or left division of an army, regiment, etc.  (e) Naut. That part of the hold or orlop of a vessel which is nearest the sides.  In a fleet, one of the extremities when the ships are drawn up in line, or when forming the two sides of a triangle.  --Totten. (f) One of the sides of the stags in a theater.
 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 of, or Under the 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 Zool., 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 Zool., 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 Zool., 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.
 on the wing
      adv : flying through the air; "we saw the ducks in flight" [syn: in
            flight]