(v. i.) To open the mouth involuntarily through drowsiness, dullness, or fatigue; to gape; to oscitate.
(v. i.) To open wide; to gape, as if to allow the entrance or exit of anything.
(v. i.) To open the mouth, or to gape, through surprise or bewilderment.
(v. i.) To be eager; to desire to swallow anything; to express desire by yawning; as, to yawn for fat livings.
(n.) An involuntary act, excited by drowsiness, etc., consisting of a deep and long inspiration following several successive attempts at inspiration, the mouth, fauces, etc., being wide open.
(n.) The act of opening wide, or of gaping.
(n.) A chasm, mouth, or passageway.
Example Sentences:
(1) "We believe BAE's earnings could stagnate until the middle of this decade," said Goldman, which was also worried that performance fees on a joint fighter programme in America had been withheld by the Pentagon, and the company still had a yawning pension deficit.
(2) Morphine (0.1 to 5 micrograms), but not U-69,593 (5 micrograms), injected into the PVN 10 minutes before oxytocin or apomorphine, was found to be able to prevent penile erection and yawning induced by the unilateral PVN microinjection of oxytocin (10 ng) or apomorphine (50 ng).
(3) Apomorphine (Apo), a short acting dopamine (DA) receptor agonist, stimulates growth hormone (GH) secretion, decreases prolactin secretion, induces yawning, penile erections and other physiological effects in man.
(4) The present results demonstrate that either the presurgical drug treatment (desmethylimipramine and pentobarbital) or 7 days isolation was alone sufficient to reduce the yawning response to physostigmine and abolish its potentiation by nifedipine.
(5) It is tempting to visualise the yawning gap between the real-life equivalents of the fictional Chatsworth Estate, where Shameless is set, and Green Templeton College, Oxford, where Walker works.
(6) The yawning response was also assessed in normal young (less than 30 yrs; N = 16) and elderly (greater than 60 yrs; N = 12) volunteers.
(7) The present results suggest that calcium might be the second messenger which mediates the expression of penile erection and yawning induced by oxytocin.
(8) The occipital belly is also active during smiling and yawning, and can be active during the movements of the auricula.
(9) Very abruptly, he yawns, looks bored, and examines his sweatshirt.
(10) As well as being present in all mammals, yawning occurs, at least in its mandibular component, in all vertebrates.
(11) The difference between rats and monkeys in their yawning response to dopaminergic compounds is discussed.
(12) The pre-synaptical receptor's role had been suggested for a long time but actually yawning seems to be linked with a D1-D2 cooperation.
(13) In fact, the gender pay gap remains a yawning chasm.
(14) After pretreatment with mecamylamine, the apomorphine- and physostigmine-induced tongue protruding was inhibited and the duration of the yawning induced by the both drugs was shortened.
(15) Central administration of ACTH in rats induces yawning and stretching.
(16) The specific D-2 agonist LY 171555 elicited yawning, genital grooming, exploratory behavior, downward sniffing and licking but failed to induce gnawing even at high doses.
(17) The behavior categories included grooming, yawning, turning, nodding and gnawing, as well as snout contact and nonsnout contact variants of locomoting, rearing and sitting.
(18) As the dihydropyridine compounds affected apomorphine-induced yawning but not penile erection, and did not affect amphetamine-induced rotation or drug discrimination, it seems unlikely that they are affecting dopamine release in vivo.
(19) Since oxytocin is present not only in the neurohypophysis but also in other brain areas, our results suggest that oxytocin is implicated in the regulation of penile erection and yawning, and provide further evidence that oxytocin acts as a neuropeptide in the central nervous system.
(20) In the lesioned animals (in which the mean striatal dopamine depletion was 67%), the maximum yawning response rate was greatly attenuated with no evidence that the dose response curve was shifted in either direction.
Yaws
Definition:
(n.) A disease, occurring in the Antilles and in Africa, characterized by yellowish or reddish tumors, of a contagious character, which, in shape and appearance, often resemble currants, strawberries, or raspberries. There are several varieties of this disease, variously known as framboesia, pian, verrugas, and crab-yaws.
Example Sentences:
(1) These preliminary results suggest that finger stick blood samples, collected on filter paper, could be used for FTA-ABS testing of remote rural populations--such as in areas where yaws is endemic.
(2) Primary care services had been hampered in controlling yaws by difficulties with transport, isolation, community resistance and the lack of skilled personel to diagnose yaws and arrange prophylactic treatment.
(3) Active and latent evidence of yaws was found only in the black race.
(4) Renewed programs for yaws control are under consideration.
(5) VOR was fairly well predicted by a current model, but our experiments revealed perceived change in attitude (roll, pitch, yaw tilt position in space) and perceived angular velocity in space that was not reflected by parallel changes in the plane or magnitude of the VOR.
(6) A full field (360 degrees) flight simulator projection system was used to investigate the sensations resulting from pitch, roll, and yaw stimuli at various head orientations.
(7) Since 1980, the annual reported incidence of yaws has declined.
(8) Positive treponemal serology, from yaws infection in childhood, was found in the serum in 92%, and in 19% also in the cerebrospinal fluid (CSF).
(9) From 1950 to 1957, major programs for the eradication of yaws were implemented throughout the region, and yaws rapidly ceased to be a threat.
(10) Analysis of blood groups of the 81 patients reactive to the Treponema pallidum immobilisation (TPI) test, who were considered to have latent or inactive yaws, compared with a control group of 552 healthy Balinese, showed that the ratio of MM to MN and NN phenotypes was 2.25 times higher in the patients than in the controls (chi 2(1) = 10.2, p less than 0.005).
(11) Yaw eye in head (Eh) and head on body velocities (Hb) were measured in two monkeys that ran around the perimeter of a circular platform in darkness.
(12) The campaign staff compiled detailed information on the epidemiology of yaws in Ghana.
(13) Single units that responded to yaw rotation were recorded extracellularly in the caudal inferior olive (IO) of barbiturate-anesthetized cats.
(14) It was performed concurrently with a survey and selective mass treatment campaign for yaws which has reappeared in the area for the first time in 20 years.
(15) However, the curtailment of yaws control activity allowed the reservoir of untreated yaws to grow unchecked, and the number of reported cases of active yaws has increased in certain parts of Africa, especially in West Africa.
(16) The conflict sickness symptom score in the pitch plane was significantly higher than that in the yaw plane for the initial exposure session (p less than 0.01).
(17) Yaws and pinta are continuing to decline to very low levels in the Americas.
(18) This proportion indicates that clinical screening alone is not sufficient to evaluate the endemic yaws level in a population.
(19) The thesis of this paper is that yaws programs have been deficient in failing to aggressively seek and contain yaws cases and contacts after mass treatment campaigns reduced yaws prevalence to low levels.
(20) Yaws was a significant health problem in Papua New Guinea until the nationwide total mass treatment campaign, which took place from 1953 to 1958.