(v. t.) To enter into; to make way into the interior of; to effect an entrance into; to pierce; as, light penetrates darkness.
(v. t.) To affect profoundly through the senses or feelings; to touch with feeling; to make sensible; to move deeply; as, to penetrate one's heart with pity.
(v. t.) To pierce into by the mind; to arrive at the inner contents or meaning of, as of a mysterious or difficult subject; to comprehend; to understand.
(v. i.) To pass; to make way; to pierce. Also used figuratively.
Example Sentences:
(1) The penetration of (22)Na was not prevented by the presence of metabolic inhibitors or by 500 mm NaCl in the suspending medium.
(2) Content of cyclic nucleoside monophosphates was decreased in all the eye tissues in experimental toxico-allergic uveitis as well as penetration of cAMP into the fluid of anterior chamber of the eye.
(3) After four years of existence, many evaluations were able to show the qualities of this system regarding root canal penetration, cleaning and shaping.
(4) testosterone, fentanyl, nicotine) may ultimately be administered in this way, important questions pertaining to pharmacology (tolerance), toxicity (irritation, sensitisation) and dose sufficiency (penetration enhancement) remain.
(5) The automatic half of both the motor which advances the trepan as well as the second motor which rotates the trepan is triggered by the sudden change in electrical resistance between the trepan and the patient's internal body fluid, at the final stage of penetration.
(6) Thus, although ferric-enterochelin cannot penetrate the cell surface from outside, the complex that is formed within the envelope is transported normally into the cell.
(7) Major limitations of the conventional sperm penetration assay are the inability to assess several aspects of sperm function (zona binding and penetration) and the absence of human ovulatory products known to influence fertilization.
(8) The cercaria, microcercous in type, is liberated and actively penetrates a second terrestrial pulmonate where development to the free metacercarial stage takes place in the pericardial cavity.
(9) The incomplete penetrance of the neoplastic phenotype and the monoclonality of lymphoid tumors suggest that tumor formation in v-fps mice requires genetic or epigenetic events in addition to expression of the P130gag-fps protein-tyrosine kinase.
(10) All of these factors make morbidity and mortality associated with penetrating injuries low.
(11) The treatment led to decreased spinnbarkeit, arborization and sperum penetration in the cervical mucus.
(12) The penetration coefficient, determined by the surface tension, contact angle and viscosity, is a measure of the ability of a liquid to penetrate into a capillary space, such as interproximal regions, gingival pockets and pores.
(13) The rational surgical methods of treatment in 85 patients with suppurative hepatic echinococcosis penetrating into the abdomen cavity are presented.
(14) This apparent lack of centrosomal staining was not due to problems associated with penetration of the antibody probes, since staining adjacent to and within the centriolar cylinder was observed when phosphoprotein antigens recognized by the MPM-2 antibody were localized.
(15) Both types of oral cleft, cleft palate (CP) and cleft lip with or without CP (CLP), segregate in these families together with lower lip pits or fistulae in an autosomal dominant mode with high penetrance estimated to be K = .89 and .99 by different methods.
(16) Cefuzoname seems to be among the middle ranks of beta-lactam agents as far as penetration rate is concerned; however, when its potent antibacterial activity and broad spectrum are taken into account, the concentrations in CSF in patients with meningitis seem worth examining.
(17) The time of sperm penetration in the mouse eggs, however, was delayed for one-half to one hour when ejaculated sperm were used.
(18) Enzymatic lability does not, however, play as important a role as lipophilicity in the corneal and conjunctival penetration of cycloalkyl and aryl ester prodrugs.
(19) No infection threads were found to penetrate either root hairs or the nodule cells.
(20) Kinetic studies showed that significant inhibition of virus production occurred when the inhibitor was added to infected cultures up to 5 h after virus penetration.
Pervious
Definition:
(a.) Admitting passage; capable of being penetrated by another body or substance; permeable; as, a pervious soil.
(a.) Capable of being penetrated, or seen through, by physical or mental vision.
(a.) Capable of penetrating or pervading.
(a.) Open; -- used synonymously with perforate, as applied to the nostrils or birds.
Example Sentences:
(1) In this latter group two of 29 (7%) had ECG evidence of infarction while four of 28 (14%) had positive scintigrams, compared to the pervious incidence of 31%.
(2) Three antigens designated B1, B2, and B3 (perviously B, C, and D) were detected in our outbred colony and also found to be present in a wide variety of guinea pig strains.
(3) Isopycnic sucrose density (discontinuous) gradient centrifugation of vesicles from adrenal glands of control cats, and of cats given reserpine 1 or 2 days perviously, indicated that new vesicles or vesicles depleted of CA by reserpine had a lower equilibrium density than the original population of vesicles.
(4) Considering the type, localization and perviousness of the lesion, similar conclusions were drawn, and did not affect the results, except that there were more false-negatives in both exams when the lesions were impervious.
(5) The purpose was to quantitate and characterize uterine activity in a group of multiparous patients with normal labor using our present on-line method and to evaluate our method against pervious work done on uterine activity.
(6) The contractility indices (VCF: mean speed, and VCF max: maximum shortening speed of the equatorial diameter of the left ventricle (% delta theta) were unmodified in the group (I) of fourteen patients with at least one pervious by-pass.
(7) Conditioning under a steam-proof and gas pervious (O2-CO2) film.
(8) A case of pheochromocytoma of the urinary bladder is reported, and 35 perviously reported cases are analyzed.
(9) Using epithelial monolayers of HCA-7 cells, derived from a primary human colonic adenocarcinoma and grown on pervious supports, it is shown that responses to lysylbradykinin can be elicited from either side.
(10) Oral apparatuses also purified by a modification of a pervious method.
(11) The sudden withdrawal of LSD produced a fall in avoidance rate, which was dependent on the pervious training dosage; as with delta 9-THC state-dependent learning can also be assumed for LSD.
(12) Comparison of the serum time-concentration curves to pervious analgesic and toxicity trials was made, and minimum serum levels for induction of analgesia and production of side effects are discussed.
(13) The percent yield of purified hyaluronidase calculated on the basis of total activity was ten times higher than by any pervious method [Yang, C.H.
(14) Clinical manifestations, including recurrent urinary tract infection and cuff abscess, followed vaginal hysterectomy performed three years perviously.
(15) The new policy amounts to an effective U-turn on pervious, ground-breaking legislation passed by Gerhard Schröder's Social Democrat and Green government, which would have seen nuclear power phased out in just over a decade's time.
(16) Spontaneously occurring surface wrinkling retinopathy occurreed in 17 eyes of 16 patients and was not related to pervious surgery, retinal vascular disease, or obvious ocular inflammation.
(17) Previously it has been thought that such a perviousness of the mucosal barrier would be bidirectional in nature.
(18) We consider this clinical entity to be much more common than perviously reported.
(19) However, although the specificity and intracellular localization of these enzymes in different tissues have been described perviously, there are only a few reports about their localization in the salivary gland, and the functional role of arylsulphatases in the physiological function of the salivary glands.
(20) When compared with pervious data (1) it is suggested that alcohol is differentiated from pentobarbital and diazepam on the basis of their interactional effects with bemegride.