ing some action; examin a position or locality as a precaution.
reconnoitering-balloon ^eka'nei-ta-zin-ba^oun n. a balloon used for military reconnoitering.
recording-balloon zi'keiz-diq-ba^oun n. a balloon for sending meteorolegic recerding^instuments to high alti- tudes to obtain data as to atmosfenc conditions.
recording-instrument zi'ke:z-din,instr^-m3nt n. an instju- ment for automatically recording temperature, altitude, etc.
record-sheet 'zek9zd,$iit n. the sheet of paper en which a record is made by an instrument such as the meteerograf.
rectrices ,zek'tai / siz n. pi. see rectrix.
rectrix 'zektjiks n. [ploral rectrices] one of the long large quil^fethers of a bird's tail; a rudder; a taiMether.
reef ziif tr. reduce the extent or surface ef (an aerofoil or supporting^plane) as by taking in, folding up, and secur- ing, as for speedy flight.
reek ziik n. smoke; vapor; exhalation, fume.
reel ziil intr. turn round and round; tohirl; su>ay from side to side as if dizzy.
reentrance ,zi'ent3ns n. the reentering angle in the poste- rior or rear border of a bird's wing, or the part of the wing adjacent thereto.
registering-balloon 'zedsistjin-ba^uun n. a small balloon to uhich a registering?instument or recerding^apparatus is attacht; a registgationzballoon.
registration-balloon ^edsi'stjee-San-ba^oun n. a small balloon to tuhich a registering^mstsument is attacht; a registermg^balloon ; an explonngzballoon.
regulating-cone 'zegju-letirj,koon . a cenical opening or part in a parachute for regulating the escape or passage of the air thru the parachute.
rentes 'zii,meks n. [plural remiges] one of the large stiff quilkf ethers which ferm most of the spred of a bird's wing; a flightef ether ; a rower.
remiges 'zem^dsiz n. pi. see remex.
rend zend intr. [past participle rent] tear, split, part asun- der, as a balloon^envelop sometimes does.
rent rent n. an opening made by rending or tearing; a tear, break, or breach; a crevice or crack: as, a *rent in a bal- loon.
resilient zi'zili-snt adj. having resilience; apt to resile, start back, recede, or receil; tending to spring or bend back; re- bounding: as, a mobile and *resilient flightefether.
resistance zi'zistns . the action of resisting; opposition, antagonism.
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