(a.) To make dark or black; to deprive of light; to obscure; as, a darkened room.
(a.) To render dim; to deprive of vision.
(a.) To cloud, obscure, or perplex; to render less clear or intelligible.
(a.) To cast a gloom upon.
(a.) To make foul; to sully; to tarnish.
(v. i.) To grow or darker.
Example Sentences:
(1) Immediate pigment darkening (IPD) occurs in human skin upon exposure to ultraviolet-A and visible radiation.
(2) There would never be a meeting in a darkened room where a winner was chosen just to fit an audience demographic or to create more entertaining telly.
(3) Each subject sat for 6 minutes in a darkened room and was told to memorize a list of words she heard form a tape.
(4) Normal, refractile spores were produced in each case; a portion of the barium spores lost refractility and darkened.
(5) Instead of coming to the bank, where we would be photographed coming in the front door, we were all to meet outside the McDonald's in Liverpool Street where we would be picked up in a people-carrier with darkened windows and driven in through the back of the bank.
(6) The final stage of germination was characterized by changes in the central spore region (core), notably phase darkening of the spore center and stainability with mercurochrome, and by a slight additional absorbancy decrease.
(7) Confluent patches of flat pigmentation appeared over the palpebral conjunctiva 18 weeks after the onset of treatment and showed progressive lateral enlargement and darkening.
(8) The 16 sites were qualitatively examined for evidence of resorption by either thinning or darkening of bone relative to the time immediately following surgery.
(9) Today's matches take place in a darkened hall within the stadium's towering walls, on the battlefields of multimillion-selling first-person shoot-'em-up Call of Duty .
(10) alpha-Melanocyte stimulating hormone (alpha-MSH) is a linear tridecapeptide (Ac-Ser-Tyr-Ser-Met-Glu-His-Phe-Arg-Trp-Gly-Lys-Pro-Val-NH2) that has diverse physiological functions in addition to its reversible darkening of amphibian skins by stimulating melanosome dispersion within melanophores.
(11) 1) Asphyxia induced marked body colour darkening and bradycardia.
(12) The most striking feature of such neurons was darkening of their dendrites associated with abnormally high density cytoplasm that contained mitochondria with disrupted cristae.
(13) Braving darkening skies, they were initially in an upbeat mood, belting out the samba rhythm of carnival classic I'm Going to Celebrate.
(14) With official unemployment data today expected to show a further rise in the long-term unemployed, the TUC argues young people were some of the worst affected by Britain's deep recession and their outlook could darken further as public sector job losses intensify.
(15) beta-Adrenoceptor blocking agents, in contrast, inhibit catecholamine-induced darkening but have no effect on MSH-induced darkening.
(16) During the hibernation period, the epiphyseal catecholamine charge is well detected in the garden dormouse; it appears more important in darkened animals at 22 degrees C and much less in animals under continuous lighting.
(17) Melanocyte stimulating hormone-induced darkening or dispersion of the granules was reversed by each of these metabolites.
(18) Reactivation of the enzyme extracted from darkened leaves was achieved simply by adding a thiol compound.
(19) By analyzing the synaptic relationships of such "darkened" dendrites, connections in the upper dorsal horn can be deciphered.
(20) The specific activity of the light enzyme was consistently about twice that of the dark form when assayed at suboptimal (but physiological) pH (pH 7.0-7.3), and the former was also less sensitive to feedback inhibition by L-malate than that from darkened leaves under various conditions.
Transmute
Definition:
(v. t.) To change from one nature, form, or substance, into another; to transform.
Example Sentences:
(1) The decrease was concurrent with transmutation of the tyrosine hydroxylase-like immunopositive (THLI) cells into mature neurons that had abundant elongated neurites with varicosities and synapses on neuronal elements in the host caudate.
(2) The debate is of both a dogmatic and practical nature, dogmatic in that it has bearing on the question of cellular specificity, and practical in that histological transmutation has repercussions on the macroscopic aspect of the tumor, its clinical evolution and even its behaviour vis-a-vis radiation therapy.
(3) The stimulation was assumed to depend on the radiation and transmutation defects in DNA due to H3 disintegration, and to occur when the stream of labelled cells reached the G1r phase.
(4) The abundant data indicate that the shamanistic priest, who was highly placed in the stratified society, guided the souls of the living and dead, provided for the transmutation of souls into other bodies and the personification of plants as possessed by human spirits, as well as performing other shamanistic activities.
(5) These negative results revealed that malignant cells injected 24 hours previously in a mouse (in vivo conditions) differ from a malignant cell suspension in a tube (in vitro conditions) where the lethal effect of 64Cu transmutation was clearly evidenced.
(6) Weaving a historical narrative from slavery through the present, the film and its contributors trace in stark relief, the various transmutations that the oppression of the black body in America has taken, and the ways that criminal justice has been recruited to that end.
(7) The dose to the stem cell nucleus, then, is derived from the number and energy of decays originating in the nuclear mass of 270 X 10(-12) g. The transmutation effect from isotopic decay in DNA is considered in order to arrive at dose equivalents.
(8) In that system pathogenic primacy is given to failures in parental empathy, leading to the technical requirement of providing empathic responses which build a cohesive self through transmuting internalizations.
(9) The transmutation mainly contributes (about 80%) to cell inactivation.
(10) The mutant is 7 times more sensitive than the wild type to transmutation of both isotopes.
(11) Now that central London has been transmuted into a hollowed-out non-dom tax shelter and money laundering facility, Centre Point is now fulfilling its destiny.
(12) Among the various methods for studying the relative effects of transmutation and radiation of incorporated nuclides, simulation of beta radiation by external gamma exposure is of practical importance.
(13) It is shown that the treatment (a) injure specifically via 64Cu transmutation the DNA of the malignant cells and further perform (with thioproline or spermine) a "reverse transformation" on the damage DNA; (b) restore a "noncancer functioning" in the host cells which had become "cancer cells"; this restoration was performed using, at physiological concentrations, natural compounds already present in all cell types such as metal ions, amino acids, vitamin D2, thyroxine and chelating substances.
(14) This correlation suggests that nuclear recoil, electronic excitation, and chemical transmutation are probably of minor importance to the observed biological toxicity with either isotope.
(15) Lethal efficiency of 32P leads to 32P transmutation in DNA amounted to 0.046.
(16) The UV degradation product, which was isolated and identified, showed that irradiation of nimodipine causes oxidation of the dihydropyridine ring and transmutation of the nitro group in the nitrobenzene moiety.
(17) Many of the stories have transmuted into songs and visual artwork, such as the controversial painting Mistake Creek Massacre (depicting the murder of eight Indigenous men, women and children in 1915), by the Kimberley artist Queenie McKenzie.
(18) Radioactive decay in a labelled molecule leads to specific chemical and biological consequences which are due to local transmutation effects such as recoil, electronic excitation, build-up of charge states and change of chemical identity, as well as to internal radiolytic effects.
(19) He accomplished that with the Weavers, the group he formed in 1950, and who would establish a template for the folk revival of that decade and its transmutation in the early 1960s.
(20) The word Bobbitt has transmuted itself into a verb.