(a.) Not to be stormed, or taken by assault; incapable of being subdued; able to resist attack; unconquerable; as, an impregnable fortress; impregnable virtue.
(a.) Capable of being impregnated, as the egg of an animal, or the ovule of a plant.
Example Sentences:
(1) The results of the study suggest that perhaps tobramycin of cefotaxime-impregnated PMMA beads would produce local levels of antibiotic high enough to sterilize a given dead space for a period of 28 days.
(2) The nerve endings in the heart of fishes were studied using silver impregnation techniques.
(3) The silver impregnated axons of these cells converge to a paired centrosuperficial tract forming terminal enlargements at the ventrolateral surface of the spinal cord.
(4) After fixation by perfusion, perikaryal neurofibrils were not impregnated in either newborn or old animals or in animals with facial nerve transection.
(5) The reason behind Burnham's impregnable new confidence may well also explain the coalition's eagerness to drive him on to the backbenches.
(6) Essential features are the use of reagent grade chemicals only, a pretreatment solution to ensure optimal impregnation of different organs from different animals and species, and an unvarying procedure.
(7) These cells were argyrophil with the silver impregnation method of Grimelius.
(8) In Golgi-Cox-impregnated coronal sections of albino rat brains at 1, 4, 26, 24, 30, 60 and 90 days it is presented the evolution of the spine-less, bare initial zone ("nude zone", NZ) at the proximal apical main dendrites of the layer V pyramidal neurons in the somatosensory and anterior limbie cortex.
(9) The epithelial surface is covered with adherent masses composed of desquamated and destroyed epithelial cells and leukocytes impregnated with proteins and penetrated by pseudomycelium.
(10) The use of cryostat and cryoprotective measures for processing Golgi impregnated brain tissue has shortened and simplified the method without loss of quality.
(11) was measured by the radioactive microsphere method in rats at different time intervals after the implantation of carrageenan-impregnated sponges.
(12) The distribution of neurofilament protein-triplet immunoreactivity also correlated with the distribution of staining observed with a silver impregnation method based on Bielschowsky.
(13) The author examined the basic structural elements of the aortic wall by means of histological and impregnation methods.
(14) SEM and TEM examinations suggested that dentinal collagen exposed by the etching but not entangled and impregnated by poly (4-META-co-MMA) easily deteriorated by water during the longer immersion.
(15) Total and partial meso-diencephalic transections and lesions of the central gray matter were performed to trace with the Fink--Heimer silver impregnation method the ascending brain stem pathways to the forebrain.
(16) By means of HPLC mono- and oligomeric carbohydrates are separated on silica, modified chemically with aminopropyl groups or impregnated in situ with an amine modifier (piperazine).
(17) Ovarian activity was controlled for synchronization of oestrus by using progestagen-impregnated intravaginal sponges and multiple ovulations were induced by using exogenous gonadotrophin therapy.
(18) By utilizing the gamma-emitting isotope of selenium, Se-(8-azidoadenosyl)[75Se]selenomethionine eliminates the need for the impregnation of acrylamide gels with fluorographic enhancers and dilution of liquid samples into scintillation cocktails, as is required with the commonly used methyl-3H-labeled and 35S-labeled S-(8-azidoadenosyl)methionine.
(19) Body mass and food intake increased substantially during pregnancy and lactation and the magnitude of the increase was unaffected by daylength; by contrast, body weight was significantly reduced in non-impregnated voles kept in short as compared to long days.
(20) In silver-impregnated sternocleidomastoid muscles of the young adult rat, we measured synaptic parameters such as nerve terminal length, the number of branching points of terminal arborization, and muscle fiber diameter, and used a morphometric approach to explore specific questions concerning neuromuscular remodelling.
Penetrate
Definition:
(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.