(a.) Incapable of being penetrated or pierced; not admitting the passage of other bodies; not to be entered; impervious; as, an impenetrable shield.
(a.) Having the property of preventing any other substance from occupying the same space at the same time.
(a.) Inaccessible, as to knowledge, reason, sympathy, etc.; unimpressible; not to be moved by arguments or motives; as, an impenetrable mind, or heart.
Example Sentences:
(1) During the entire process the passage between the lumen and the intercellular space remained blocked by the tight junctions, as shown by their impenetrability to ferritin.
(2) Veering between a patronising video , a vague report and impenetrable financial data does not amount to openness and accountability.
(3) Similar results were obtained with subcutaneous or intraperitoneal thymus grafts and with thymus grafts within cell-impenetrable diffusion chambers.
(4) On the other hand, the performance of a material that is liquid-proof is absolute--it is impenetrable and can be accurately described as impervious.
(5) In a 70-page document that was largely ignored and almost completely impenetrable, he said the US intended to treat cyberspace as a military battleground.
(6) This last phenomenon appears to precede the entry of some axons into the neuropil and suggests that the glia limitans may not necessarily represent an impenetrable barrier to the passage of regenerating axons into the CNS.
(7) It appears that the major part of the exclusion volume is due to the collagen-fibril as a rod and the dextran coil as an impenetrable sphere.
(8) Some of the games are based around recognisable sports (like football), others around ancient samurai conflicts – but whatever the theme, the nature of the action is absolutely impenetrable to the casual onlooker.
(9) Many of the particles could therefore pass freely through tightly woven fabrics with pores up to 10-15 micrometer which might seem to be impenetrable to whole corneocytes, typically larger than 30 X 40 micrometer in the hydrated state.
(10) QSI's intentions are no doubt honest but if players as important as goalkeepers can be owned by anonymous third parties in impenetrable offshore companies the potential for match fixing is clear.
(11) The more complex a system, the more unintelligible and impenetrable is the map of possible side effects.
(12) Spontaneous postoperative expulsion of an IUD resulted in blockage or distortion of the anastomosis in 1 monkey; and in another the anastomosis was patent for a least 5 months, but later became impenetrable.
(13) Lactoperoxidase-catalyzed iodination (LCI) was carried out under impenetrable conditions in intact electroplax (where protein exposure on the external surface is monitored) and in split electroplax (where total protein labeling on both the external and internal monolayers of the plasma membrane bilayer is monitored).
(14) For 45 minutes, Arjen Robben twisted and turned with the ball only to find himself confronted by an impenetrable thicket of blue-shirted Brazil defenders.
(15) And viewed again in this mood, Libeskind's building, with its blank excoriated surfaces, looks closed to understanding; in material as in spirit, impenetrable.
(16) Subsequent chemical analysis of sperm-penetrable and impenetrable samples indicated that the concentrations of mucus nondialyzable solids (NDS), mucins, and soluble proteins were significantly higher in impenetrable specimens.
(17) The mites ate the germ before the endosperm, leaving an impenetrable layer of crushed endosperm cells between these regions.
(18) Two decades after Tutu made it a shining city of defiance amid seemingly impenetrable darkness, Cape Town is finding economic liberation harder than the political kind.
(19) Insensitivities at 190 and 100 nm were common to all five types of spores, indicating that these wavelengths were particularly impenetrant and absorbed by the outer layer materials.
(20) By announcing a huge programme of bond purchases , much bigger relative to the eurozone bond market than the quantitative easing implemented in the United States, Britain, or Japan, the ECB president, Mario Draghi, erected the impenetrable firewall that had long been needed to protect the monetary Union from a Lehman-style financial meltdown.
Resistant
Definition:
(a.) Making resistance; resisting.
(n.) One who, or that which, resists.
Example Sentences:
(1) Direct fetal digitalization led to a reduction in umbilical artery resistance, a decline in the abdominal circumference from 20.3 to 17.8 cm, and resolution of the ascites within 72 h. Despite this dramatic response to therapy, fetal death occurred on day 5 of treatment.
(2) It is supposed that delta-sleep peptide along with other oligopeptides is one of the factors determining individual animal resistance to emotional stress, which is supported by significant delta-sleep peptide increase in hypothalamus in stable rats.
(3) Fifty-six percent of Lac+ transconjugants were resistant to the S. cremoris M12R lytic phage.
(4) After stimulation with lipopolysaccharide and calcium ionophore A23187, culture supernatants of clones c18A and c29A showed cytotoxic activity against human melanoma A375 Met-Mix and other cell lines which were resistant to the tumor necrosis factor, lymphotoxin and interleukin 1.
(5) Injection of resistant mice with Salmonella typhimurium did not result in the induction of a population of macrophages that expressed I-A continuously.
(6) Results indicated a .85 probability that Directive Guidance would be followed by Cooperation; a .67 probability that Permissiveness would lead to Noncooperation; and a .97 likelihood that Coerciveness would lead to either Noncooperation or Resistance.
(7) The C3bi receptor on these cells, CR3, is resistant to elastase.
(8) The vascular endothelium is capable of regulating tissue perfusion by the release of endothelium-derived relaxing factor to modulate vasomotor tone of the resistance vasculature.
(9) One thing seems to be noteworthy in their opinion: the bacterial resistance of the germs isolated from the urine is bigger than the one of the germs isolated from the respiratory apparatus.
(10) Acquired drug resistance to INH, RMP, and EMB can be demonstrated in M. kansasii, and SMX in combination with other agents chosen on the basis of MIC determinations are effective in the treatment of disease caused by RMP-resistant M. kansasii.
(11) We conclude that chloramphenicol resistance encoded by Tn1696 is due to a permeability barrier and hypothesize that the gene from P. aeruginosa may share a common ancestral origin with these genes from other gram-negative organisms.
(12) These authors, therefore, conclude that this modified surgical approach is a viable alternative to the previously described procedures for resistant metatarsus adductus.
(13) The penicillin-resistant Enterococcus hirae R40 has a typical profile of membrane-bound penicillin-binding proteins (PBPs) except that the 71 kDa PBP5 of low penicillin affinity represents about 50% of all the PBPs present.
(14) Cop rats, however, possess a single 'suppressor' gene which confers complete resistance to mammary cancer.
(15) Both development of EDTA-resistant fibrinogen binding and fibrinogen association with the cytoskeleton were time dependent and reached maxima 45 to 60 minutes after fibrinogen binding to stimulated platelets.
(16) An inverse relationship between the pumping capacity of the heart and vascular resistance was confirmed at different stages of examination and treatment of the patients.
(17) This mobilization procedure allowed transfer and expression of pJT1 Ag+ resistance in E. coli C600.
(18) One rat strain (TAS) is susceptible to the anticoagulant and lethal effects of warfarin and the other two strains are homozygous for warfarin resistance genes from either wild Welsh (HW) or Scottish (HS) rats.
(19) Resistant mutants can be isolated only at concentrations of 1 M allylalcohol in the medium.
(20) A murine keratinocyte cell line that is resistant to the growth-inhibitory effects of transforming growth factor beta 1 (TGF beta 1) was examined for differential gene expression patterns that may be related to the mechanism of the loss of TGF beta 1 responsiveness.