pilot balloon

• POS: Noun Phrase
• HYPHEN: pi=lot bal=loon

CIDE DICTIONARY

pilot balloon,  

 A small, unmanned balloon sent up to indicate the direction of air currents.  [Webster 1913 Suppl.]

ROGET THESAURUS

pilot balloon

Ship

N ship, vessel, sail, craft, bottom, navy, marine, fleet, flotilla, shipping, man of war, transport, tender, storeship, merchant ship, merchantman, packet, liner, whaler, slaver, collier, coaster, lighter, fishing boat, pilot boat, trawler, hulk, yacht, baggala, floating hotel, floating palace, ocean greyhound, ship, bark, barque, brig, snow, hermaphrodite brig, brigantine, barkantine, schooner, topsail schooner, for and aft schooner, three masted schooner, chasse-maree, sloop, cutter, corvette, clipper, foist, yawl, dandy, ketch, smack, lugger, barge, hoy, cat, buss, sailer, sailing vessel, windjammer, steamer, steamboat, steamship, liner, ocean liner, cruiseship, ship of the line, mail steamer, paddle steamer, screw steamer, tug, line of steamers, destroyer, cruiser, frigate, landing ship, LST, aircraft carrier, carrier, flattop, nuclear powered carrier, submarine, submersible, atomic submarine, boat, pinnace, launch, life boat, long boat, jolly boat, bum boat, fly boat, cock boat, ferry boat, canal boat, swamp boat, ark, bully, battery, bateau, broadhorn, dory, droger, drogher, dugout, durham boat, flatboat, galiot, shallop, gig, funny, skiff, dingy, scow, cockleshell, wherry, coble, punt, cog, kedge, lerret, eight oar, four oar, pair oar, randan, outrigger, float, raft, pontoon, prame, iceboat, ice canoe, ice yacht, catamaran, hydroplane, hovercraft, coracle, gondola, carvel, caravel, felucca, caique, canoe, birch bark canoe, dugout canoe, galley, galleyfoist, bilander, dogger, hooker, howker, argosy, carack, galliass, galleon, polacca, polacre, tartane, junk, lorcha, praam, proa, prahu, saick, sampan, xebec, dhow, dahabeah, nuggah, kayak, keel boat, log canoe, pirogue, quadrireme, trireme, stern-wheeler, wanigan, wangan, wharf boat, balloon, airship, aeroplane, biplane, monoplane, triplane, hydroplane, aerodrome, air balloon, pilot balloon, fire balloon, dirigible, zeppelin, aerostat, Montgolfier, kite, parachute, jet plane, rocket plane, jet liner, turbojet, prop-jet, propeller plane, corporate plane, corporate jet, private plane, private aviation, airline, common carrier, fighter, bomber, fighter-bomber, escort plane, spy plane, supersonic aircraft, subsonic aircraft, afloat, aboard, on board, on ship board, hard a lee, hard a port, hard a starboard, hard a weather.

Experiment

N experiment, essay, analysis, screen, trial, tentative method, t=atonnement, verification, probation, experimentum crucis, proof, (demonstration), criterion, diagnostic, test, probe, crucial test, acid test, litmus test, crucible, reagent, check, touchstone, pix, assay, ordeal, ring, litmus paper, curcuma paper, turmeric paper, test tube, analytical instruments, empiricism, rule of thumb, feeler, trial balloon, pilot balloon, messenger balloon, pilot engine, scout, straw to show the wind, speculation, random shot, leap in the dark, analyzer, analyst, assayist, adventurer, experimenter, experimentist, experimentalist, scientist, engineer, technician, subject, experimentee, guinea pig, experimental animal, protocol, experimental method, blind experiment, double-blind experiment, controlled experiment, poll, survey, opinion poll, epidemiological survey, retrospective analysis, retrospective survey, prospective survey, prospective analysis, statistical analysis, literature search, library research, tryout, audition, discovery, measurement, evidence, deduction, induction, abduction, experimental, empirical, probative, probatory, probationary, provisional, analytic, docimastic, tentative, unverified, unproven, speculative, untested, on trial, under examination, on probation, under probation, on one's trial, on approval, check it out, give it a try, see how it goes, Run it up the flagpole and see who salutes.