precession

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Related to Free precession: precessional, Torque-free precession

pre·ces·sion

 (prē-sĕsh′ən)
n.
1. The act or state of preceding; precedence.
2. Physics The motion of the axis of a spinning body, such as the wobble of a spinning top, when there is an external force acting on the axis.
3. Astronomy
a. Precession of the equinoxes.
b. A slow gyration of the earth's rotational axis around the pole of the ecliptic, caused by the gravitational pull of the sun, moon, and other planets on the earth's equatorial bulge.

[Late Latin praecessiō, praecessiōn-, from Latin praecessus, past participle of praecēdere, to go before; see precede.]

pre·ces′sion·al adj.

precession

(prɪˈsɛʃən)
n
1. the act of preceding
2. (Astronomy) See precession of the equinoxes
3. (General Physics) the motion of a spinning body, such as a top, gyroscope, or planet, in which it wobbles so that the axis of rotation sweeps out a cone
[C16: from Late Latin praecessiō a going in advance, from Latin praecēdere to precede]
preˈcessional adj
preˈcessionally adv

pre•ces•sion

(priˈsɛʃ ən)

n.
1. the act or fact of preceding; precedence.
2. the movement of the axis of rotation of a spinning body around another axis, outside the body and at an angle to it: an effect exhibited by a spinning top or gyroscope.
3. the slow, conical motion of the earth's axis of rotation caused by forces exerted on the earth by the sun and moon and responsible for the precession of the equinoxes.
[1300–50; < Late Latin praecessiō a going before, advance, derivative (with -tiō -tion) of praecēdere to precede]
pre•ces′sion•al, adj.

pre·ces·sion

(prē-sĕsh′ən)
1. The motion of the axis of a spinning body, such as the wobbling of a spinning top, that arises when an external force acts on the axis.
2. The motion of this kind made by the Earth's axis, caused mainly by the gravitational pull of the sun, moon, and other planets. ♦ The precession of the equinoxes is the slow westward shift of the autumnal and vernal equinoxes along the ecliptic, resulting from precession of the Earth's axis. A complete precession of the equinoxes takes 25,800 years.

precession

ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.precession - the motion of a spinning body (as a top) in which it wobbles so that the axis of rotation sweeps out a cone
motion - a state of change; "they were in a state of steady motion"
2.precession - the act of preceding in time or order or rank (as in a ceremony)
activity - any specific behavior; "they avoided all recreational activity"
Translations
precessie

precession

nPräzession f; precession of the equinoxes (Astron) → Präzession fder Äquinoktien
References in periodicals archive ?
Standard balanced steady state free precession (bSSFP) breath-hold cine sequences at rest in the standard views (apical, mid, and basal short-axis views; 4, 2, and 3 chamber views) are first acquired.
proposed the application of balanced steady-state free precession (bSSP) for the significantly higher frequency for anatomy based resonance as compared to gradient echo (GE), which scarifies the certain amount of sensitivity and CNR as a result of spoiling of transverse magnetisation.
These novel results on 4U 0142+61 can be consistently interpreted by assuming that this magnetar is axisymmetric, and is undergoing free precession with a slip period of T = 55 ksec.
In initial attempts to visualize biliary tree, steady-state free precession imaging was used with high contrast over several breath holds.
had found out missing pulse steady state free precession as a powerful tool for the noninvasive measurement of slow fluid flows in different regions of the kidney about renal microcirculation, [sup][19] while some laboratory indexes recently are adopted as the detection of microvasculature damage in renal microcirculation dysfunction, like 24 h microalbuminuria (mALB), transferrin, [sz]2-MG, urinary retinal binding protein, urinary N-acety1-[sz]-D-glucosamine, cysC, UA, and urinary mACR.
However, the inability of fast imaging with steady-state precession sequences to provide the reliable CSF flow quantification through the third ventricle floor fenestration, opens the space for the complementary use of phase-contrast MRI techniques, especially the incoherent gradient echo phase-contrast sequences (PC-GRE) or phase-contrast sequences with balanced steady-state free precession (PC-bSSFP) [24-26],
A number of fast imaging techniques have been developed, including steady state free precession (SSFP) and echo planar imaging (EPI).