spiracle


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spir·a·cle

 (spĭr′ə-kəl, spī′rə-)
n.
1. Zoology A respiratory aperture, especially:
a. Any of several tracheal openings in the exoskeleton of an insect, spider, or other terrestrial arthropod.
b. A small respiratory opening behind the eye of most sharks and rays and certain other fishes.
c. The blowhole of a cetacean.
2. An aperture or opening through which air is admitted and expelled.

[Middle English, from Latin spīrāculum, from spīrāre, to breathe.]

spi·rac′u·lar (spī-răk′yə-lər, spĭ-) adj.

spiracle

(ˈspaɪərəkəl; ˈspaɪrə-)
n
1. (Zoology) any of several paired apertures in the cuticle of an insect, by which air enters and leaves the trachea
2. (Zoology) a small paired rudimentary gill slit just behind the head in skates, rays, and related fishes
3. (Zoology) any similar respiratory aperture, such as the blowhole in whales
4. (Geological Science) geology a protrusion of sediment into a lava flow, formed by the explosive transition of water into steam
[C14 (originally: breath): from Latin spīrāculum vent, from spīrāre to breathe]
spiracular adj
spiˈraculate adj

spi•ra•cle

(ˈspaɪ rə kəl, ˈspɪr ə-)

n.
1. a breathing hole; an opening by which a confined space has communication with the outer air; air hole; blowhole.
2. one of the external orifices of the respiratory system in certain invertebrates.
[1300–50; Middle English < Latin spīrāculum air hole =spīrā(re) to breathe + -culum -cle2]
spi•rac′u•lar (-ˈræk yə lər) adj.

spir·a·cle

(spĭr′ə-kəl, spī′rə-kəl)
An opening through which certain animals breathe, such as the blowhole of a whale or one of the openings in the exoskeleton of an insect.

spiracle

A hole through which a creature breathes, such as in the abdomen of an insect.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.spiracle - a breathing orificespiracle - a breathing orifice      
orifice, porta, opening - an aperture or hole that opens into a bodily cavity; "the orifice into the aorta from the lower left chamber of the heart"
blowhole - the spiracle of a cetacean located far back on the skull
stigma - an external tracheal aperture in a terrestrial arthropod
Translations
spiracle

spiracle

[ˈspɪrəkl] Nespiráculo m

spiracle

n (of shark, ray etc)Atemloch nt; (of insect also)Stigma nt (spec); (of whale, dolphin)Spritzloch nt
References in classic literature ?
And all the while, jet after jet of white smoke was agonizingly shot from the spiracle of the whale, and vehement puff after puff from the mouth of the excited headsman; as at every dart, hauling in upon his crooked lance (by the line attached to it), Stubb straightened it again and again, by a few rapid blows against the gunwale, then again and again sent it into the whale.
Foolish, whenever you take the meanness and formality of that thing you do, instead of converting it into the obedient spiracle of your character and aims.
If you stand on its summit and look at these two f-shaped spout-holes, you would take the whole head for an enormous bass-viol, and these spiracles, the apertures in its sounding-board.
On every side the seven gables pointed sharply towards the sky, and presented the aspect of a whole sisterhood of edifices, breathing through the spiracles of one great chimney.
Spiracular disc-pores (spdp) each with 5 loculi, rarely a few pores with fewer or more loculi, present in a single irregular row extending laterally from each spiracle to body margin.
The animal was subjected to the curious who wanted to photograph and touch it, and this is confirmed by the coordinator of the rescuers and by the own photograph that we attach, where children are seen touching the animal, accidentally covering the spiracle (orifice where they breathe )," Equinac said.
Disc width (DW), snout length (SL), pelvic fin length (PL), mouth width (MW), spiracle diameter (SD) and, in the case of males, the clasper length (CL) was obtained; all measurements are reported in centimeters.
Tiny brachypterous tettigoniids with, in lateral view, narrow head, spiny fore and middle tibiae, open tympana, and small auditory spiracle.
Anterior spiracle whitish; lower calypter whitish with darkish setulae; the branch of vein M1 + 2 forming acute angle as it approaches the wing edge.
coli strain LV143, isolated from respiratory exudate collected through the spiracle of a female dolphin from a zoo, was sent to the National Institute for Agricultural and Veterinary Research in Lisbon, Portugal, for bacteriological and mycological analysis and antimicrobial drug susceptibility testing.