What's the difference between precocious and premature?

Precocious


Definition:

  • (a.) Ripe or mature before the proper or natural time; early or prematurely ripe or developed; as, precocious trees.
  • (a.) Developed more than is natural or usual at a given age; exceeding what is to be expected of one's years; too forward; -- used especially of mental forwardness; as, a precocious child; precocious talents.

Example Sentences:

  • (1) Locally directed cell migration was observed in a group of cells in 1. which were involved in a process of aggregation, the latter being probably related to precocious formation of organ primordia.
  • (2) The importance of precocious development for planning teratological studies is emphasized.
  • (3) We used two experimental paradigms inspired by developmental biology to study how bees obtain information on changing colony needs that results in precocious foraging.
  • (4) Adrenocorticotropic hormone (ACTH) infusion performed in five patients with precocious adrenarche produced at least a 50 greater than increase in urinary T excretion in all and a similar increase in Adiol excretion in four of five patients.
  • (5) Most of what is understood about precocious puberty in boys comes from boys with precocious puberty secondary to poorly controlled CAH.
  • (6) As a precociously talented young artist, his interests didn't lie with landscape or the countryside – "though I did collect frog spawn and things like that" – but more with the advertising, posters and signwriting he saw around town.
  • (7) The most recently discovered species, Enterocytozoon bieneusi, is known only from the small intestinal enterocytes of patients with the acquired immunodeficiency syndrome, and is easily differentiated from other microsporidia by the precocious development of spore organelles in the sporont and by the poor development of the endospore layer of the spore wall.
  • (8) Several lines of experimental evidence indicate that contact with the animal pole locus, or "target" region, is crucial for the change in phenotype of the SMCs: (1) the phenotypic change can be induced precociously by bringing the animal pole region within reach of the tip of the archenteron early in gastrulation.
  • (9) Tumors are rare, but well-documented causes of precocious puberty in both sexes.
  • (10) Long-acting GnRH agonists are the treatment of choice for central precocious puberty.
  • (11) The results obtained for the basal cortisol were in disaccordance with a previous report; however, we used a sensitive test to detect precocious involvement of the adrenal glands.
  • (12) The precocious reformation of the nuclear envelope may be responsible for the lengthening of metaphase.
  • (13) We propose a model whereby a protein repressor, under the control of PKA, inhibits precocious induction of stalk cell differentiation by DIF and so regulates the choice between slug migration and culmination.
  • (14) The precocious beginning of psychogenic diabetes insipidus, and some conclusions, on a difficult case of hard diagnosis are emphasized.
  • (15) Precocious puberty due to other causes can be treated more effectively with inhibitors of steroidogenesis and blockers of androgen action.
  • (16) In altricial species, embryonic growth rate and metabolic rate increase continuously during incubation, whereas in precocial species, embryonic growth rate declines shortly before hatching so that metabolic rate usually reaches a plateau before hatching.
  • (17) It remains unclear, however, whether such changes in expression of MAP2 represent a primary effect of the mutation or if it is only a precocious result of Purkinje cell degeneration.
  • (18) These events appeared to be similar to those occuring in the adult cycling rat, in precocious puberty induced by the administration of pregnant mare serum gonadotropins and during the onset of natural puberty.
  • (19) Recent evidence suggests that a group of children exists in whom premature sexual maturation occurs in the absence of pubertal levels of gonadotropins; that is, they have gonadotropin-independent precocious puberty.
  • (20) The mother of an 11-year-old epileptic, mentally retarded, and sexually precocious girl asked to have the girl sterilized.

Premature


Definition:

  • (a.) Mature or ripe before the proper time; as, the premature fruits of a hotbed.
  • (a.) Happening, arriving, existing, or performed before the proper or usual time; adopted too soon; too early; untimely; as, a premature fall of snow; a premature birth; a premature opinion; premature decay.
  • (a.) Arriving or received without due authentication or evidence; as, a premature report.

Example Sentences:

  • (1) Perinatal mortality is strongly associated with obstetrical factors, respiratory distress syndrome, and prematurity.
  • (2) The dangers caused by PM10s was highlighted in the Rogers review of local authority regulatory services, published in 2007, which said poor air quality contributed to between 12,000 and 24,000 premature deaths each year.
  • (3) Of the 622 people interviewed, a large proportion (30.5%) believed that the first deciduous tooth should erupt between the age of 5-7 months; the next commonly mentioned time of tooth eruption was 7-9 months of age; and 50.3% of the respondents claimed to have seen a case of prematurely erupted primary teeth.
  • (4) We found that, compared to one- and two-dose infants, those treated with three doses of Exosurf were more premature, smaller, required a longer ventilator course, and had more frequent complications, including patent ductus arteriosus (PDA), intraventricular hemorrhage, nosocomial pneumonia, and apnea.
  • (5) They urged the Department of Environment, Food and Rural Affairs to make air quality a higher priority and release the latest figures on premature deaths.
  • (6) Conclusions on phylogenetic trends of sexual dimorphism of skeletal robusticity and the effect of culture on it seem to be premature.
  • (7) The acetylcarnitine content of tracheal fluid was higher in samples obtained from premature newborns.
  • (8) The behavior of the retrograde H deflection in respect to the first extra beat following the premature QRS complex helped in excluding bundle branch reentry.
  • (9) We report the case of a premature infant, small for gestational age, who experienced rostral herniation of a portion of frontal lobe through the anterior fontanel as the result of a hemorrhagic cerebellar infarction followed by a large parieto-occipital intracerebral hemorrhage.
  • (10) Amiodarone was able to suppress the premature ventricular beats, depress conduction and prolong refractoriness in both, the AV node and accessory pathway to prevent recurrences of atrioventricular reentry.
  • (11) 1) The incidence of premature rupture of the membranes (PROM), threatened premature delivery, toxemia and abruption placentae were 40.6, 36.4, 7.8 and 3.0%, respectively.
  • (12) Further significantly positive associations to the incidence of myocardial infarction (MI) were found for the following parameters: Systolic and diastolic blood pressure, family history of premature MI, cigarette smoking, plasma levels of triglycerides, VLDL-cholesterol and blood glucose.
  • (13) In 27 decerebrate cats under various experimental conditions, we studied the effects of programmed premature ventricular contractions on the impulse activity of preganglionic sympathetic fibres isolated from the third left thoracic ramus.
  • (14) The gonadally unresponsive patients had either pituitary tumours or premature menopause.
  • (15) Premature infants possessed 35-50% higher levels of retinal vitamin C than those found in mature retinas.
  • (16) It is suggested that the limited renal capacity to reabsorb sodium may account for the low bicarbonate threshold in premature infants.
  • (17) A patient with hypertensive heart disease, in whom atrial premature beats with a decrease in the amplitude and widening of his bundle potential, prolongation of the H-V interval, and right bundle branch block pattern suggested intrahisian longitudinal dissociation, is described.
  • (18) Findings on cranial ultrasonography strongly suggested the diagnosis of a localized infarct in four premature infants.
  • (19) Premature birth retarded maturation of hepatic glucuronyl transferase activity.
  • (20) A clearly recognizable relationship of SEH to gestational age and clinical status exists in that all SEH occur in premature infants under 2500 g birthweight (although only 56% of all premature infants have SEH) and 95% of SEH occur in infants with the respiratory distress syndrome (although only 60% of infants with the respiratory distress syndrome have SEH).