(n.) Quickness of motion; swiftness; speed; celerity; rapidity; as, the velocity of wind; the velocity of a planet or comet in its orbit or course; the velocity of a cannon ball; the velocity of light.
(n.) Rate of motion; the relation of motion to time, measured by the number of units of space passed over by a moving body or point in a unit of time, usually the number of feet passed over in a second. See the Note under Speed.
Example Sentences:
(1) Arterial compliance of great vessels can be studied through the Doppler evaluation of pulsed wave velocity along the arterial tree.
(2) Some common eye movement deficits, and concepts such as 'the neural integrator' and the 'velocity storage mechanism', for which anatomical substrates are still sought, are introduced.
(3) For this purpose the blood flow velocity in the internal carotid artery, basilar cerebral artery and the anterior cerebral artery was measured by pulsed Dopplersonography before and 5-10 min after i.v.
(4) The severity of injury in a gunshot wound is dependent on many factors, including the type of firearm; the velocity, mass, and construction of the bullet; and the structural properties of the tissues that are wounded.
(5) High velocity flow with a characteristic contour was recorded in patients with a significant gradient.
(6) It facilitated the acquisition of quantitative velocity information with standard Doppler ultrasound techniques by identifying areas of high velocity or turbulent flow and was invaluable in the assessment of anomalous pulmonary venous drainage occurring either as an isolated anomaly or in conjunction with complex intracardiac lesions.
(7) This report represents the first comprehensive description of instantaneous and continous phasic blood velocity at the mitral valve during atrial arrhythmias in man.
(8) The inhibition of estrogen 2-hydroxylase by androgens was demonstrated in screening assays and has been further investigated under initial velocity conditions.
(9) After using the OK method to obtain a distance curve for height, we introduce a new method (VADK) to derive velocity and acceleration curves from the fitted distance curve.
(10) Extraction of liposomes containing guanylate cyclase with 0.2% Lubrol PX resulted in the recovery of 85% of the original amount of added activity, suggesting that the decrease in maximal velocity was not due to enzyme denaturation.
(11) A velocity ratio of less than or equal to 0.25 alone was sensitive (92%) in detecting severe aortic stenosis.
(12) Four types of behavior were observed with increasing stimulation level: 1) the two spectral parameters and conduction velocity both increased with stimulation in 15 experiments, 2) the two spectral parameters decreased and conduction velocity increased in 8 experiments, 3) the two spectral parameters and conduction velocity both decreased in 6 experiments, and 4) the two spectral parameters increased and conduction velocity decreased in 3 experiments.
(13) We did three repeated PD measures of mean aortic flow velocity in ten term infants (using four trained operators) to determine inter- and intraoperator reproducibility.
(14) Increased velocity of motor conduction in at least one nerve related directly proportionally to the Cs concentration of the serum was demonstrated in 56-70% of the patients after one dialysis.
(15) Contrary to current knowledge there was no statistically significant difference in the velocities of nerve conduction on the left and right sides of these subjects.
(16) Starting from the hypothesis that a new type of cooperativity, dynamic cooperativity, is present in the elementary cycles of the chemo-mechanical conversion, quantitative and consistent agreement was obtained between the theoretical and experimental data on the temperature dependences of the streaming velocity and the ATPase activity, including the presence of the phase transition.
(17) The velocity-to-capacity ratios were not different at any of the ages in both the homogenate and microsomal preparations.
(18) Simultaneous atrial imaging and pulsed Doppler velocity measurement showed that passive atrioventricular flow occurred late in atrial lengthening and active atrioventricular flow occurred during atrial contraction.
(19) The solution of these differential equations gives the velocity of the basilar membrane and hence other related quantities, e.g., displacement, pressure, driving-point impedance at the stapes.
(20) The present studies examined the effect of cytosolic protons on electrotonic spread and conduction velocity in cardiac Purkinje fibers.