(n.) The nostril, or one of the nostrils, of whales, porpoises, and allied animals.
(n.) One of the external openings communicating with the air tubes or tracheae 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.
(n.) A tubular orifice communicating with the gill cavity of certain ganoid and all elasmobranch fishes. It is the modified first gill cleft.
(n.) Any small aperture or vent for air or other fluid.
Example Sentences:
(1) The spiracular organ is a tube (skate) or pouch (shark) with a single pore opening into the spiracle.
(2) Therefore the interneurones have reciprocal effects on the antagonistic motoneurones of the spiracles.
(3) The spiracular organ is a lateral line derived receptor associated with the first gill cleft (spiracle).
(4) The LKIR neurons in the abdominal ganglia form efferent axons supplying the lateral cardiac nerves, spiracles, and the segmental perivisceral organs.
(5) During the process of emergence this gas moves into the exuvial space through the adult spiracles and then follows the exuvial fluid into the alimentary canal.
(6) Three Drosophila genes have been identified that are important in controlling the development of the head, two of which, empty spiracles and orthodenticle, have been cloned and shown to contain a homeobox.
(7) The second stage is sensitive to 31 degrees and coincides with the period of black rings formation on anterior spiracles in the 3rd laval instar.
(8) The final model which includes both tympana and spiracles is able to simulate both the hearing directionality and, in part, the frequency selectivity of the system.
(9) The reduced spiracles play little or no role in gill ventilation.
(10) Spiracles of insects open in high carbon dioxide tensions and close in high oxygen tensions.
(11) Rickettsiae-like structures were found in the salivary gland cells of Drosophila auraria during different larval and prepupal developmental stages, from the early 3rd instar up to 14 hr after spiracle inversion.
(12) The closer muscles of the left and the right spiracles of a thoracic segment are both innervated by two motoneurones, which spike in a variety of patterns during expiration.
(13) The closer motoneurones of each thoracic spiracle whose somata are in the pro-, meso- or metathoracic ganglia all receive the same excitatory synaptic inputs.
(14) They influence three aspects of ventilation; (a) the closing and opening movements of the thoracic spiracles, (b) some aspects of abdominal pumping movements and (c) the recruitment of some motoneurones controlling head pumping.
(15) We report here that three previously identified zygotic genes buttonhead (btd), empty spiracles (ems) and orthodenticle (otd) may behave like gap genes that mediate bcd function in the embryonic head.
(16) The dominant oscillator overrides local oscillators in the abdominal ganglia and thus sets the rhythm for the entire abdomen, and it also controls spiracle opening and closing in several thoracic and abdominal segments.
(17) Posterior spiracles of newly hatched first instar larvae of Hypoderma bovis (L.) and H. lineatum (DeVill.)
(18) The empty spiracles (ems) gene of Drosophila melanogaster is necessary for proper head formation and the development of the posterior spiracles.
(19) Despite this, the spiracles of one segment may remain shut while those on other segments continue to open and close rhythmically.
(20) We show that two genes, lines and empty spiracles, act downstream of tailless to repress central and promote terminal cell fates along the anteroposterior axis of the termini.
Vent
Definition:
(n.) Sale; opportunity to sell; market.
(v. t.) To sell; to vend.
(n.) A baiting place; an inn.
(v. i.) To snuff; to breathe or puff out; to snort.
(n.) A small aperture; a hole or passage for air or any fluid to escape; as, the vent of a cask; the vent of a mold; a volcanic vent.
(n.) The anal opening of certain invertebrates and fishes; also, the external cloacal opening of reptiles, birds, amphibians, and many fishes.
(n.) The opening at the breech of a firearm, through which fire is communicated to the powder of the charge; touchhole.
(n.) Sectional area of the passage for gases divided by the length of the same passage in feet.
(n.) Fig.: Opportunity of escape or passage from confinement or privacy; outlet.
(n.) Emission; escape; passage to notice or expression; publication; utterance.
(v. t.) To let out at a vent, or small aperture; to give passage or outlet to.
(v. t.) To suffer to escape from confinement; to let out; to utter; to pour forth; as, to vent passion or complaint.
(v. t.) To utter; to report; to publish.
(v. t.) To scent, as a hound.
(v. t.) To furnish with a vent; to make a vent in; as, to vent. a mold.
Example Sentences:
(1) The goal of the expedition, led by Prof Ken Takai of the Japan Agency for Marine-Earth Science and Technology, was to study the limits of life at deep-sea vents in the Cayman Trough as part of a round-the-world voyage of discovery by the research ship RV Yokosuka .
(2) Though the exercises have given the US a chance to vent its frustration at what appears to be state-sponsored espionage and theft on an industrial scale, China has been belligerent.
(3) Despite a 30% rate of luminal blockage in stents retrieved after indwelling times up to 3 months, the incidence of clinical obstruction in stented tracts up to 3 months was 4%, confirming other reports that significant urine flow occurs around rather than through hollow, vented stents.
(4) Methods compared were: (1) aspiration of stomach contents through a large, vented, multi-orificed gastric tube, and (2) indirect determination by a dye dilution method using polyethylene glycol (PEG) as the marker.
(5) For Vent 1, serum hemoglobin levels increased from 40 to 249 mg. per 100 ml.
(6) We found that venting improves the speech intelligibility, especially in background noise simulating modulated speech.
(7) There was a 4-10% increase in His-Purkinje (HP) and ventricular (VENT) conduction time with each anesthetic.
(8) Thus, the clinically feasible intervention of left ventricular venting during reperfusion was not cardioprotective.
(9) 6.39pm BST AstraZeneca shares tumble as investors vent their disappointment over Pfizer bid - closing summary AstraZeneca's site in Macclesfield, Cheshire, today.
(10) The biochemical changes that occurred in the vented culture bottles stabilized more rapidly than those of the unvented bottles.
(11) Whether you're a microbe at a hydrothermal vent, or a computer programmer at a software company, we all function on that same biochemistry."
(12) First, in order to remove that part of the systolic force which is related to intracavitary pressure, left ventricular bypass was created and the left ventricle vented.
(13) In Experiment 1, carbon monoxide (CO) exposure from eight 60 ml puffs increased in an orderly fashion as a function of filter vent blocking.
(14) boluses at a cardiac output of 2 L. At a cardiac output of 4 L., Vent 2 removed 42, 76, and 49 per cent, respectively.
(15) Pringle found these conferences “brilliant and often informative”, but “they used to drive me nearly frantic because of the difficulty of getting a decision.’ Katharine Whitehorn , the women’s page editor, famously declared that “the editor’s indecision is final”, but although Astor would sometimes allow his journalists to vent opposing views in print as well in person – Nora Beloff and Robert Stephens on Israel and Palestine, for example – he always had the final say.
(16) It was shown that parallel and side branch vents produce similar low frequency filtering effects and vent-associated reactance resonances.
(17) "If the fans want to vent their anger at me I can take it.
(18) The measurement has been carried out with and without venting.
(19) Trade union organisers said that the turnout had exceeded their expectations, and thousands had travelled by coach and by train from as far as Edinburgh to vent their anger at the government's cuts by marching through London to a rally in Hyde Park.
(20) She was outraged and turned to Twitter to vent her fury.