Page:Dictionary of aviation.djvu/152

 128 DICTIONARY OF AVIATION

considerd apart from the spars, rigging, and sustaining^sur- faces, effers to the air, in flight; bedy^resistance ; hed* resistance : contrasted with drift. humidity hgo'midi-ti n.

1. the quality or condition of being humid or meist; moisture, dampness.

2. liquid matter, especially condenst water^vapor, which makes a body or locality humid or meist; moisture in the air, such as vapor, mist, or fog; damp.

humming-bird 'hAmirj,bB:zd n. any bird of the large fam- ily Tjochilidae, remarkable for the humming sound made by the vibration of the wings, which is more rapid than that of any other kind of bird.

hurricane 'hsi,ken n. a violent wmd^storm or wind pre- vailing around the center of a West Indian or other typi- cal cyclone, whose rate varies from 80 to 130 miles an hour; .any sterm or tempest in tuhich the wind blows with ter- rific violence; specifically, a wind (numberd 12 in Beau- fort's wind^scale) having a velocity of about 50 meters per second. hurricane wind, see under wind.

hurricane-distance 'hezi-ken/Iistns n. the distance of the center of a hurricane from any given point, often roughly calculated from the average rate at tuhich the barometric pressure is falling; the distance of the center of a hurri- cane according to the law of storms.

hurricane-range 'hezi-ken^eends n. a range or region in luhich hurricanes prevail or occur.

hurricane -signal 'hBzi-ken,signl n. a wind^signal used with reference to an approaching hurricane; a hurricane* warning.

hurricane-track 'hezi-ken^aek. the track, path, or course of a hurricane.

hurricane-warning 'hszi-ken/woiz-nirj n. a warning of an approaching hurricane; a hurncane?signal.

hurtle 'hBztl intr. move with a clattering or clashing noise; dash along with a rattling or rustling sound; rush noisily.

hurtling 'hezttiij n. the action of the verb hurtle; rushing, clattering flight or other movement: as, the *hurtling of a falcon.

hurtling 'hszttirj adj. that hurtles; characterized by noisy rush : as, a *hurtlmg gait.

hydro-aeroplane ,hai-dro'ee-3^3 / pi.een n. a hydroplane equipt with aeroplanes enabling it to rise from the water and fly thru the air; a combination of a hydroplane with an aeroplane flyer; also, an aeroplane with floats.

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