Page:Dictionary of aviation.djvu/47

 DICTIONARY OF AVIATION 23

aliform 'adi,fe:zm adj. having the form of a wing; wing*

shaped, winglike; alate; pterygeid. alight s'lait intr. [preterit alighted, alif] settle or ledge

upon the ground or elsewhere, after descending thru the

air above; dismount, get down, or land from a balloon or

airship; land under control, en a particular spet or ebject,

by floating, flying, or falling lightly, as a bird from the

wing; descend, settle (and dismount). alighting-area 9'lai-tirj,e:-zi-9 n. an area or tract of

ground to be used by aviators for landing their machines

and alighting. alighting-gear 9'lai-tirj,gi:z n. the gear or apparatus (in an

aircraft) which is used in alighting or coming to earth;

the landing-gear.

aliped '3eli,ped adj. wing-footed, as a bat. aloft 9'}e:ft adv.

1. high up in the air or sky; at a great elevation, rela- tivly, above the earth; en high.

2. en or to a higher part of a balloon or airship. alpaca ^I'pseka n. a fabric made of the wool of a species

of Peruvian llama, used in making balloon-envelops.

altimeter ,ael'timi-t9z n. an instrument for mesuring alti- tudes, as a quadrant, sextant, or theodolite.

altitude 'selti,tQud n. height or elevation above the ground, or, in a stricter sense, above the level of the sea; height in the air; loftiness: as, flying at frigid *altitudes.

altitude-control 'aelti-tgud-kan^rool n. the controlling- apparatus by uuhich the altitude of an airship is regulated; the control by the manipulation of tuhich the altitude-rudder is operated.

altitude-prize 'ae}ti-tgud,p5aiz n. a prize or reward efferd or won for attaining a specially high altitude in an airship; a height-prize.

altitude-record 'aelti-tgud^ekszd n. a record for altitude; a height-record.

altitude-rudder 'aelti-tgud,zAd9<: n. the rudder by which the altitude of an airship is controlled.

alto 'selto adj. high, highest : as, *alto clouds.

alto -cumulus ,aeho'kgumjo-l3s n. [ploral altocumuli] high cumulus, consisting of whitish or grayish balls or masses, with shaded portions, usually grouped in flecks or rows, often so close together that their edges meet; cumulo-cirrus.

alto-nimbus ,3elto'mmb9s n. [ploral alto*nimb\\ high nim- bus, a dull-colord cloud f ermd at the tep of a mass of air flowing in under an advancing cumulus or cumulo-nimbus, and afterward giving rise to rain.

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