deceleration

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Related to decelerate: accelerated

deceleration

 [de-sel″ĕ-ra´shun]
the sudden stopping of movement, a frequent mechanism of motion injury. Common causes of deceleration injury are motor vehicle accidents and falls.
early deceleration in fetal heart rate monitoring, a transient decrease in heart rate that coincides with the onset of a uterine contraction.
late deceleration in fetal heart rate monitoring, a transient decrease in heart rate occurring at or after the peak of a uterine contraction and resulting from fetal hypoxia.
variable d's in fetal heart rate monitoring, a transient series of decelerations in heart rate that vary in duration, intensity, and relation to uterine contractions; they are abrupt in onset and cessation and result from vagus nerve firing in response to stimuli such as umbilical cord compression in the first stage of labor.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

de·cel·er·a·tion

(dē-sel'ĕr-ā'shŭn),
1. The act of decelerating.
2. The rate of decrease in velocity per unit of time.
Farlex Partner Medical Dictionary © Farlex 2012
A term referring to the slowing of the foetal heart in response to a reduction in maternal circulation
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

deceleration

Dip Obstetrics A periodic & transient slowing of the fetal heart rate in response to uterine contractions, ie stress. See Fetal heart monitor, Uniform deceleration, Variable deceleration.
Deceleration
Uniform deceleration The fetal heart response to uterine contractions; UCs are symmetrical, have a uniform temporal relation thereto and are divided into:
Early deceleration/Type I dip Due to vagal stimulation elicited in the first stage of labor by fetal head compression
Late deceleration/Type II dip Due to uteroplacental insufficiency, potentially associated with a less favorable outcome; may signal early vasomotor lability
Variable deceleration The fetal heart response is asynchronous with respect to uterine contractions; the curves on the fetal heart monitor are more angled and saw-toothed, and may be related to compromise in placental blood flow, eg umbilical cord compression and, like late decelerations, may signify parturition-related difficulties
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.

de·cel·er·a·tion

(dē-sel'ĕr-ā'shŭn)
1. A slowing of contractions during the first stage of labor.
2. A slowing of the fetal heart rate during uterine contractions.
[de- + acceleration]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

Deceleration

A decrease in the fetal heart rate that can indicate inadequate blood flow through the placenta.
Mentioned in: Antepartum Testing
Gale Encyclopedia of Medicine. Copyright 2008 The Gale Group, Inc. All rights reserved.

de·cel·er·a·tion

(dē-sel'ĕr-ā'shŭn)
A slowing of contractions during the first stage of labor.
[de- + asceleration]
Medical Dictionary for the Dental Professions © Farlex 2012
References in periodicals archive ?
The key finding is that performance of the sector is forecast to decelerate in the coming years.
Consumption expenditures are likely to decelerate slightly in 1996; the deceleration is likely to be widespread among the components of consumption expenditures.
BANKING AND CREDIT NEWS-December 12, 2012--US credit union performance to decelerate, according to report(C)2012 M2 COMMUNICATIONS http://www.m2.com
Also reflecting the slower economic growth, sales taxes are likely to decelerate; tax legislation already enacted is likely to add less to the increase in sales taxes in 1995 than in 1994.
Economic growth is likely to decelerate further this year -- to some 1 1/4 per cent -- although it should remain well above the EC average.
With the exception of EM Asia, all regions are forecast to decelerate. MEA will slow to 5.7%, and EM Europe's credit performance is likely to remain weak.
New Delhi, Oct 16 ( ANI ): Planning Commission Deputy Chairman Montek Singh Ahluwalia on Tuesday appeared to be not in tune with the International Monetary Fund's (IMF) move to revise India's growth forecast down to 4.9 percent in 2012, saying it was not at all reasonable because that would imply that the economy would decelerate further.
Industry decelerated for the second month in a row and will continue to decelerate through the end of the year.
Growth will decelerate from its strong 1992-1997 pace, particularly at the original equipment manufacturer (OME) level.
Property tax accruals are likely to decelerate again, reflecting decreases due to tax legislation; excluding the effects of tax law changes, property tax accruals are likely to increase about as much as in 1993.
The projections for 1992 are for a recovery in economic activity, but policy will be tighter and so growth may decelerate somewhat in 1993.
"They have to accelerate and decelerate, they have to jump up and down through each stride," consuming precious energy.