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28 DICTIONARY OF AVIATION

jected en the under or upper surface of the clouds, or en a feg-bank, or en dew-coverd grass, epposit to the sun; an aureola; a glory.

anthropornis ,3en0s9'pe:z-nis n. a flying-machine designed in the year 1877 by de Louvrie.

anticycloual ,senti-sai'ki,oo-nl, ,aenti'sai-ki.9-nl n. same meaning as antic yclonic.

anticyclone ,senti'sai,k;Lon n. a wether-condition presenting some features which are the epposits of those presented by a cyclone ; the rotary outward flow of air from a region ,of high barometric pressure; also the whole system of high pressure and outward flow.

anticyclonic / asnti-sai / kz.enik adj.

1. opposed to cyclonic : as, an *anticyclenic theory.

2. related to, or having the nature ef, an anticyclone. Gallon's anticyclonic law, the law of anticyclones an- nounced by Galton in 1863; Galton's anticyclenic rule.

anticyclonically ,senti-sai'ki,eni-k9-h: adv. in the manner of an anticyclone; in an anticyclenic manner.

antisolar ,3enti'sDO-l9z, (assumptivly) 'senti,soo-l9z adj. situ-- ated at a peint epposit to the sun, as the center of the rainbow or the gegenschein; located at the antelies.

antisun 'senti,SAn n.

1. the point in the sky diametrically epposit the sun.

2. the peint in the sky epposit the sun in azimuth and at at the same altitude as the sun above the horizon.

antitrade 'aenti/treed n. a wind that blows stedily above the tradewmd and in the epposit direction to it; an antitrade- wind; a return-trade.

antitradewind ,3enti'trade,wind, (by contrast) 'senti,treed- wind n. the wind or air-current above and pposit in di- rection to a tradewmd; the antitrade; the countertrade; the return-trade.

anti-twilight ^nti'tiuai^ait n. the tiuilight arc, as first seen in the east epposit the setting sun.

Antwerp 'sen/ttcBzp n. a kind of carrier-pigeon.

aptera 'sept9-z3 n. pi. wingless insects, etc.

apteral 'aept9-z9l adj. wingless; (in zoology) apterous.

apteran 'sept9-z9n adj. wingless.

apteran 'sept9-z9n n. a wingless insect; one of the aptera.

apterium sep'tir-zi^m n. [plural apteria] a fetherless tract en the skin of a bird ; an apterion : distinguisht from pteryla.

apteroid 'aeptg^eid adj. wingless; as of something relativly destitute of wings or sustaining-surfaces; similar to that of a wingless thing, compare pterygoid. apteroid aspect, see under aspect.

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