(v. t.) The quality of being heavy; that property of bodies by which they tend toward the center of the earth; the effect of gravitative force, especially when expressed in certain units or standards, as pounds, grams, etc.
(v. t.) The quantity of heaviness; comparative tendency to the center of the earth; the quantity of matter as estimated by the balance, or expressed numerically with reference to some standard unit; as, a mass of stone having the weight of five hundred pounds.
(v. t.) Hence, pressure; burden; as, the weight of care or business.
(v. t.) Importance; power; influence; efficacy; consequence; moment; impressiveness; as, a consideration of vast weight.
(v. t.) A scale, or graduated standard, of heaviness; a mode of estimating weight; as, avoirdupois weight; troy weight; apothecaries' weight.
(v. t.) A ponderous mass; something heavy; as, a clock weight; a paper weight.
(v. t.) A definite mass of iron, lead, brass, or other metal, to be used for ascertaining the weight of other bodies; as, an ounce weight.
(v. t.) The resistance against which a machine acts, as opposed to the power which moves it.
(v. t.) To load with a weight or weights; to load down; to make heavy; to attach weights to; as, to weight a horse or a jockey at a race; to weight a whip handle.
(v. t.) To assign a weight to; to express by a number the probable accuracy of, as an observation. See Weight of observations, under Weight.
Example Sentences:
(1) Circuit weight training does not exacerbate resting or exercise blood pressure and may have beneficial effects.
(2) Low birth weight, short stature, and mental retardation were common features in the four known patients with r(8).
(3) A progressively more precise approach to identifying affected individuals involves measuring body weight and height, then energy intake (or expenditure) and finally the basal metabolic rate (BMR).
(4) After 55 days of unrestricted food availability the body weight of the neonatally deprived rats was approximately 15% lower than that of the controls.
(5) However, there was no correlation between the length of time PN was administered to onset of cholestasis and the gestational age or birth weight of the infants.
(6) In animal experiments pharmacological properties of the low molecular weight heparin derivative CY 216 were determined.
(7) Type 1 changes (decreased signal intensity on T1-weighted spin-echo images and increased signal intensity on T2-weighted images) were identified in 20 patients (4%) and type 2 (increased signal intensity on T1-weighted images and isointense or slightly increased signal intensity on T2-weighted images) in 77 patients (16%).
(8) No associations were found between sex, body-weight, smoking habits, age, urine volume or urine pH and the O-demethylation of codeine.
(9) The peak molecular weight never reached that of a complete 2:1 complex.
(10) low molecular weight dextran in the course of right heart catheterization.
(11) Pituitary weight, mitotic index and chromosomes were studied in male rats following a single or repeated dose of estradiol-benzoate for a total period of 210 days.
(12) Maximal yields of lipid and aflatoxin were obtained with 30% glucose, whereas mold growth, expressed as dry weight, was maximal when the medium contained 10% glucose.
(13) During the digestion of these radiolabeled bacteria, murine bone marrow macrophages produced low-molecular-weight substances that coeluted chromatographically with the radioactive cell wall marker.
(14) The molecular weight of antigen RFB2 was estimated to be approximately 85,000 daltons based on the results of gel filtration on Sepharose CL-6B.
(15) The product of the ugpQ gene, expressed in minicells, has an apparent molecular weight of 17,500.
(16) There were significant differences in the body weight of control and undernourished rats in each experiment.
(17) Milk yield and litter weights were similar but backfat thickness (BF) was greater in 22 C sows (P less than .05) compared to 30 C sows.
(18) After 2 weeks the rats were sacrificed and the brain damage evaluated by comparing the weight of the lesioned and unlesioned hemispheres.
(19) Preliminary data also suggest that high-molecular-weight rearrangements of the duplicated region are present in all tissues.
(20) It reduced serum AP levels, increased serum Ca levels, increased bone ash weight, epiphyseal and metaphyseal bone volume, with a concomitant reduction in epiphyseal and metaphyseal bone marrow volume.
Weightless
Definition:
(a.) Having no weight; imponderable; hence, light.
Example Sentences:
(1) It is concluded that brain is the organ which is subjected to short-term simulated weightlessness in the highest degree.
(2) The effect of repeated weightlessness exposures on maximal aerobic capacity was determined when seven healthy men (36-48 yr) underwent two 10-d bedrest (BR) periods in the -6 degrees headdown position, which were separated by a 14-d recovery period.
(3) It can be concluded that weightlessness produced no effect on the fish development, beginning with the stage of the axial complex formation.
(4) In weightlessness, "falls" were achieved using elastic cords running from a torso harness to the floor.
(5) These rats' swimming disability was similar to that of bilabyrinthectomized rats in normogravic condition and to that of normal rats immersed in water during weightlessness.
(6) The body reactions to weightlessness seem to prepare pronounced vestibulo-vegetative reflexes to threshold and subthreshold vestibular stimuli induced by head and body movements in flight.
(7) The changes discovered were evidently the result of functional underactivity of the skeletal muscles under conditions of weightlessness.
(8) The application of pharmacological agents, preventing the motion sickness syndrome in modelling the early stages of adaptation to weightlessness by means of 6-hour antiorthostatic influence (-15 degrees), does not exert a negative action on the human cardiovascular system.
(9) On their basis, including their own data, the authors discuss possible mechanisms of the sickness symptom-complex in the weightless state.
(10) Before effective countermeasures can be devised, a thorough knowledge of the extent, location, and rate of bone loss during weightlessness is needed from actual space flight data or ground-based disuse models.
(11) The mass disintegration of lymphocytes and accumulation of nuclear detritus in the thymus as well as neutrophil infiltration of the spleen can be attributed to the acute stress of the reentry and weightlessness--1 g transition stages.
(12) Virtually all these observations describe effects at the very onset of weightlessness.
(13) However, little is known about the early cardiovascular adaptive response to simulated weightlessness and the effects of varying degrees of head-down suspension.
(14) These results demonstrate that ANF and PRA which have opposite effects on aldosterone release and Na excretion, change in opposite sens during fluid shifts, to produce antinatriuresis in upright position, or natriuresis in experimental weightlessness.
(15) Mechanical properties (stress and strain) of bones from rats of different ages exposed to weightlessness, hypodynamia or hypokinesia were examined upon torsion.
(16) The resultant products were tested during short-term weightlessness aboard the aircraft-laboratory TU-104A.
(17) New data which demonstrated again that weightlessness induced symptoms specifically assoicated with blood redistribution and pressure increase in the jugular veins were obtained.
(18) In modes II, III and IV the direction of the nystagmus reversed during weightlessness.
(19) Chest radiographs were made after 10 s of a weightless flight trajectory aboard a NASA-Ames Research Center Learjet in both posterior-anterior and left lateral projections on five seated volunteers at residual volume, functional residual capacity, and total lung capacity.
(20) Cultures of the bacterium Escherichia coli were grown in the orbiting Biocosmos 2044 satellite in order to evaluate the effects of the space environment--weightlessness and heavy particle radiation--on growth parameters and energy metabolism, which have previously been reported to be affected, and on induction of the SOS response, which reflects DNA damage to the cell.