n.1.(Anat.) The nostril, or one of the nostrils, of whales, porpoises, and allied animals.
2.(Zool.) One of the external openings communicating with the air tubes or tracheæ of insects, myriapods, and arachnids. They are variable in number, and are usually situated on the sides of the thorax and abdomen, a pair to a segment. These openings are usually elliptical, and capable of being closed. See Illust. under Coleoptera.
3.Any small aperture or vent for air or other fluid.
Noun1.spiracle - a breathing orifice
air duct, air hole, air passage, air shaft, air tube, airway, armhole, avenue, blowhole, breathing hole, bullet-hole, bunghole, channel, chute, cringle, deadeye, debouch, door, egress, emunctory, escape, estuary, exhaust, exit, eye, eyelet, floodgate, flume, gasket, grommet, guide, keyhole, knothole, loop, loophole, louver, louverwork, manhole, mousehole, naris, nostril, opening, out, outcome, outfall, outgate, outgo, outlet, peephole, pigeonhole, pinhole, placket, placket hole, pore, port, porthole, punch-hole, sally port, shaft, sluice, spilehole, spout, tap, touchhole, transom, vent, ventage, venthole, ventiduct, ventilating shaft, ventilator, vomitory, way out, weir, wind tunnel
Translate Spiracle to Spanish, Translate Spiracle to German, Translate Spiracle to French
Spinus pinus
Spinus tristis
spiny anteater
spiny dogfish
spiny lizard
spiny lobster
spiny puffer
Spiny rat
spiny softshell
spiny talinum
spiny-finned fish
spiny-headed worm
SPipistrellus hesperus
-- Spiracle --
Spiraea prunifolia
Spiral axis
spiral bandage
spiral galaxy
Spiral gear
Spiral gearing
spiral model
spiral nebula
Spiral of Archimedes
Spiral operculum
spiral ratchet screwdriver
Spiral shell
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