DECELERATION

Pronunciation (US):

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IPA (US):

 Dictionary entry overview: What does deceleration mean? 

• DECELERATION (noun)
  The noun DECELERATION has 3 senses:

1. a decrease in rate of change

2. (physics) a rate of decrease in velocity

3. the act of decelerating; decreasing the speed

  Familiarity information: DECELERATION used as a noun is uncommon.

 Dictionary entry details 

• DECELERATION (noun)

Sense 1

Meaning:

A decrease in rate of change

Classified under:

Nouns denoting attributes of people and objects

Synonyms:

deceleration; retardation; slowing

Context example:

the deceleration of the arms race

Hypernyms ("deceleration" is a kind of...):

alteration; change; modification (an event that occurs when something passes from one state or phase to another)

Antonym:

acceleration (an increase in rate of change)

Derivation:

decelerate (reduce the speed of)

decelerate (lose velocity; move more slowly)

Sense 2

Meaning:

(physics) a rate of decrease in velocity

Classified under:

Nouns denoting time and temporal relations

Hypernyms ("deceleration" is a kind of...):

rate (a magnitude or frequency relative to a time unit)

Domain category:

natural philosophy; physics (the science of matter and energy and their interactions)

Antonym:

acceleration ((physics) a rate of increase of velocity)

Sense 3

Meaning:

The act of decelerating; decreasing the speed

Classified under:

Nouns denoting acts or actions

Context example:

he initiated deceleration by braking

Hypernyms ("deceleration" is a kind of...):

hurrying; speed; speeding (changing location rapidly)

Antonym:

acceleration (the act of accelerating; increasing the speed)

 Context examples 

The nadir of the deceleration occurs after the peak of the uterine contraction, and the time from onset to nadir of the deceleration is greater than or equal to 30 seconds.

(Late Fetal Heart Rate Deceleration, NCI Thesaurus)

Fetal heart rate decelerations that occur with less than 50 percent of uterine contractions within a 20 minute timeframe.

(Intermittent Fetal Heart Rate Deceleration, NCI Thesaurus)

Example patterns include: absent variability with recurrent late decelerations, absent variability with recurrent variable decelerations, absent variability with bradycardia, and sinusoidal pattern.

(Abnormal Continuous Cardiotocography Pattern, NCI Thesaurus)

Fluctuations in the baseline fetal heart rate, determined in a 10 minute window while excluding accelerations and decelerations.

(Fetal Heart Rate Variability, NCI Thesaurus)

Characterized by baseline fetal heart rate 110 to 160 beats per minute, moderate baseline variability, absent late or variable decelerations and absent or present early decelerations.

(Normal Continuous Cardiotocography Pattern, NCI Thesaurus)

Example patterns include: minimal or marked variability, absent variability without recurrent decelerations, absence of induced accelerations after fetal stimulation, recurrent variable decelerations with minimal or moderate variability, prolonged decelerations, recurrent late decelerations with moderate variability and variable decelerations with slow return to baseline, overshoots or shoulders.

(Indeterminate Continuous Cardiotocography Pattern, NCI Thesaurus)

The nadir of the deceleration occurs at the same time as the peak of the uterine contraction, and the time from onset to nadir of the deceleration is greater than or equal to 30 seconds.

(Early Fetal Heart Rate Deceleration, NCI Thesaurus)