Page:Dictionary of aviation.djvu/158

 134 DICTIONARY OF AVIATION

inflater m'ftee-taz n. [also spelt inflator] one who or that

which inflates. inflating-gas in'fsLee-tir^gaes n. gas used for inflating a

balloon or the gasbag of an airship; balloon^gas. inf la ting-neck in'fz.ee-tirj,nek n. the neck or tube thru

which a balloon is inflated or fild with gas; the inflation*

tube. inflation in'feee-San n.

1. the action of inflating or filling with air or gas; fill- ing.

2. the condition of being inflated with air or gas; dis- tended or swollen condition.

inflation- tube in'ftee-$3n,tc.uub n. the tube or pipe thru which a balloon is inflated; the inflating^neck.

inflowing 'm,f;LDO-irj adj. flowing or blowing inward, that is, toward the land; blowing inland: as, an *mflowing sea? breeze.

inrush 'in,<TA$ n. a rushing in; a rapid inflow, as of air; an inrun ; an influx.

instability ,inst9'bih-ti n. lack of stability, stedfastness, or balance; unstediness : as, rotativ *instability.

intake 'm,teek n. the amount or quantity of air taken in by, or passing thru, a propeller or air^screw.

intercity 'mt9z,siti adj. extending or taking place between cities : as, an *intercity flight.

interplane 'mt3z,pJLeen adj. [also spelt intertplane] extend- ing between the planes or aerofoils of a flying^machine : as, an *interplane stjut.

inversion m'vBz$3n n. same meaning as inversions one.

inversion-zone m'vBz$3n,zoon n. a horizontal zone or can- opy consisting of compact masses of warm air which have risen and spred out, floating in the cold atmosfere at a considerable altitude : as, the upper *inversion?zone. com- pare zone of discontinuity, under zone.

inviscid ,in'visid adj. net viscid; having no viscosity; net sticky.

irrotation ,Tzo'tee-$3n n. absence of rotation; want of rota- tory movement.

irrotational ,izo'tee-$3-nl adj. net rotational; characterized by absence of rotation; destitute of rotatory motion; pos- sessing irrotation.

isametral ,ai-s3'metDl adj. having the same average cli- matic conditions during a specified period; marking equal-

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