(v. i.) To pass gradually from a sound, prosperous, or perfect state, to one of imperfection, adversity, or dissolution; to waste away; to decline; to fail; to become weak, corrupt, or disintegrated; to rot; to perish; as, a tree decays; fortunes decay; hopes decay.
(v. t.) To cause to decay; to impair.
(v. t.) To destroy.
(n.) Gradual failure of health, strength, soundness, prosperity, or of any species of excellence or perfection; tendency toward dissolution or extinction; corruption; rottenness; decline; deterioration; as, the decay of the body; the decay of virtue; the decay of the Roman empire; a castle in decay.
(n.) Destruction; death.
(n.) Cause of decay.
Example Sentences:
(1) Q In radioactive decay, different materials decay at different rates, giving different half lives.
(2) 4) Parents imagined that fruit drinks, carbonated beverages and beverages with lactic acid promoted tooth decay.
(3) In the absence of prostigmine, increasing the concentration of ACh in the synaptic cleft did not change the time constant for decay of end-plate currents.
(4) The kinetics of bimolecular decay of alpha-tocopheroxyl free radicals (T) was studied by ESR mainly in ethanol and heptanol solvents.
(5) For those synapses that were close to the soma the time constant for decay for the non-NMDA component, which was voltage insensitive, ranged from 4-8 ms. 7.
(6) In analyzing the results with any regimen it is important to have long follow-up since late relapses do occur and initial very positive results tend to decay with greater numbers of patients treated.
(7) In one normal ear, ten noise trauma ears, 11 Meniere disease ears, and 24 eighth nerve lesion ears to reflexes or reflex decay that were suggestive or retrocochlear lesions were observed.
(8) Biochemical, molecular, and immunohistologic studies have identified membrane cofactor protein (MCP) and decay accelerating factor (DAF) on trophoblast cells, which could assist in preventing lysis of the cells by complement-activating maternal antibodies.
(9) It has been 40 years since the first community in the United States added a regulated amount of fluoride to its public water supply to prevent tooth decay.
(10) This could reflect the existence of a parallel set of synapses with fast decay that serve as a shortterm store.
(11) However, clemastine caused a decay in subjects' performance in both Experiments I and II, but only on the tracking task.
(12) The nylon group had the second highest amount of induced WTR cylinder at one day, which had decayed to ATR cylinder by five months.
(13) The observed signals from germinating seeds of Phaseolus aures and decaying leaves of Eucalyptus are presented to show that the signals have characteristic kinetics and intensity.
(14) We develop an analogy between the steric hindrance among receptors detecting randomly placed haptens and the temporary locking of a Geiger counter that has detected a radioactive decay.
(15) Left ventricular relaxation rate was measured by calculation of a time constant of left ventricular pressure decay (T) derived from an exponential curve fit to the digitized tip-micromanometer left ventricular pressure signal.
(16) Factors increasing presynaptic activity (frequency or number of afferent stimulations) during the induction event did not affect the relative amount of LTP decay.
(17) Inhibitor activity decayed with time after radiation (2 Gy) with no activity detected at 6 h even though the cells remained in G2 phase, suggesting that either synthesis or activation of additional components is necessary for recovery from G2 arrest.
(18) These results are consistent with the previous observation in HTC cells that the decay rate of ODC activity in the presence of cycloheximide correlated well with the proportion of ODC present as a complex with antizyme, suggesting the ubiquitous role of antizyme in ODC degradation.
(19) The outward current decays exponentially with an early and late phase.
(20) The decay of acid soluble radioactivity was similar in the two groups, although protein synthesis was lowered by vitamin A deficiency.
Obsolete
Definition:
(a.) No longer in use; gone into disuse; disused; neglected; as, an obsolete word; an obsolete statute; -- applied chiefly to words, writings, or observances.
(a.) Not very distinct; obscure; rudimental; imperfectly developed; abortive.
(v. i.) To become obsolete; to go out of use.
Example Sentences:
(1) Individual tests and batteries of tests should be standardized, employ positive controls, generate results capable of quantitative analyses that may make dichotomous classification as "positive" and "negative" obsolete, be interpreted in light of mechanisms of action, and be cost-effective on a grand scale.
(2) This study suggests that pneumoencephalography may be obsolete and that the diagnosis of olivopontocerebellar degeneration may be established by abnormalities seen during computerized tomography (CT) and by abnormal responses to auditory-evoked potentials (AEPs).
(3) Genomic mapping is proceeding at such a rapid pace that any printed version of the anatomy of the human genome is immediately obsolete.
(4) Handheld computers may make bedside terminals obsolete.
(5) The ambulatory 24 hour pH test may have rendered the AP test obsolete in the assessment of GORD as the cause of NCCP.
(6) Rather than becoming obsolete by 2030, as its designers thought, the barrier will not need to be replaced until 2070, the agency said today.
(7) Will Netflix make traditional TV channels obsolete?
(8) Ratified in 1980, the document is widely seen as obsolete and part of what she hopes to change with her "democratic revolution" – a plan she says could be financed by higher corporation taxes and which works within the boundaries of a constitutional democracy.
(9) The advent of high-resolution contrast CT will probably make obsolete the use of contrast media.
(10) The time needed to review and publish an article or a book dictates that by the time it is published, any statements about current hardware will be obsolete.
(11) The term "fibrositis" for generalized tendomyopathia that can still be found in Anglo-American literature is obsolete.
(12) In all other patients the PAVS is a very valuable instrument in the surgical management of hydrocephalus because it makes shunt revisions for inadequate valve pressure obsolete in individual patients.
(13) The secondary nasal skin envelope asymmetries were studied after unilateral cleft lip repair using the original (obsolete) rotation-advancement (Millard I) and the triangular flap techniques (Bardach's modification).
(14) Gradually these young men and their would-be families become functionally obsolete in society.
(15) Finally, it is imperative that the obsolete Nigerian Children and Young Person's Law be updated.
(16) I do not accept that the great achievements of the left – unionisation, social security – are obsolete.
(17) Some daggers have already been drawn – François Rebsamen , said the revelations showed the entire idea of "première dame", was obsolete, adding that scrapping of the office of the first lady would be progress for democracy.
(18) Here we describe a new method of synthesizing an immunogenic peptide antigen, referred to as multiple antigenic peptide (MAP), which may render the need for a carrier protein obsolete.
(19) The TRH stimulation test is virtually obsolete for the diagnosis of thyrotoxicosis but remains of much interest in the investigation of psychiatric syndromes.
(20) It should be kept in mind that recent changes in OC formulations and use patterns render epidemiologic data now available obsolete.