34 DICTIONARY OF AVIATION
airships or flyers are tested or flown; an aviation^course ; an aerodrome. aviator 'ee-v^etaz n.
1. a f lying^machine ; a flyer.
2. one who flies, especially in hevier^than^air machines; one who practises aviation; a flyer, aeronaut, or airman.
aviatorial ,ee-vi-a'to:-zi-9l, ,aevi-3'to:-zi-9l adj. ef or per- taining to aviators or aviation; relating to human flight.
aviator y 'ee-vi-9,to:-zi adj. of aviation.
aviatress 'ee-vi/etjis n. a female aviator; a woman who drives a flying^machine.
aviculture 'ee-vi,kAlt$9z n. the rearing of birds; bird^fancy- ing.
avian 'ee-vi-sn, 'sevi-an n. a batelike type of aeroplane de- velopt by Clement Ader, a French electrician, which, as a result of its performance of October g, 1890, is noted for being the first power^driven, man^carrying aeroplane ever to attain flight.
a- wing 9'wirj adv. en the wing; flying.
axillar 'seksi-tez adj. axillary.
axillar 'aeksi-laz n. [commonly used in the ploral] any one of the fethers growing from the axilla or arm^pit of a bird; an axillary fether.
axillary 'aeksi,lezi adj. of the axilla or arm^pit of a bird.
axillary feathers, the fethers growing from the axilla or arm^pit of a bird; the innermost fethers lining the wing; the axillars.
azure 'ses9z, 'ee-39z n. the blue color of the clear sky; also, the unclouded vault of heven.
azure '36392, 'ee-39z adj. colord like the clear sky; sky-blue; sky^colord, cerulean.
��backbone 'bael^boon n. [also spelt backfbone"] the main sup- port or axis; the chief substantial part, as of a dirigible; a rigid red connecting the cells of a cellular kite.
back-draft 'bask/lraift n. [also spelt back draught! the draft at the back, or in the rear ef, a f lying^machine ; the wash.
backflow 'b3ek,f too n. the flowing backward of the air when acted upen as by a propeller; slip.
backsail 'baek^eel n. a sail situated at the back or hinder part of an airship; a saiUlike tail.
baffle-plate 'baefa^pteet n. a metal plate used to baffle or direct the flow of air or other gas; a deflector.
balance 'bsetens n. a balanced condition; a state of equi- librium; equipoise.
�� �
