Retardation

[Re`tar*da·tion]

Retardation is often used to describe problems in human mental development that result in a lack of intelligence or other kinds of physical or learning delays.

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The act of retarding; hindrance; the act of delaying; as, the retardation of the motion of a ship; -- opposed to acceleration.

Noun
the act of slowing down or falling behind

Noun
a decrease in speed; "the deceleration of the arms race"

Noun
lack of normal development of intellectual capacities

Noun
any agent that retards or delays or hinders; "flame-retardant"

Noun
the extent to which something is delayed or held back

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n.
The act of retarding; hindrance; the act of delaying; as, the retardation of the motion of a ship; -- opposed to acceleration.

n.
That which retards; an obstacle; an obstruction.

n.
The keeping back of an approaching consonant chord by prolonging one or more tones of a previous chord into the intermediate chord which follows; -- differing from suspension by resolving upwards instead of downwards.

n.
The extent to which anything is retarded; the amount of retarding or delay.


Retardation

Re`tar*da"tion , n. [L. retardatio: cf. F. retardation.] 1. The act of retarding; hindrance; the act of delaying; as, the retardation of the motion of a ship; -- opposed to acceleration.
The retardations of our fluent motion.
2. That which retards; an obstacle; an obstruction.
Hills, sloughs, and other terrestrial retardations.
3. (Mus.) The keeping back of an approaching consonant chord by prolonging one or more tones of a previous chord into the intermediate chord which follows; -- differing from suspension by resolving upwards instead of downwards. 4. The extent to which anything is retarded; the amount of retarding or delay. Retardation of the tide. (a) The lunitidal interval, or the hour angle of the moon at the time of high tide any port; the interval between the transit of the moon and the time of high tide next following. (b) The age of the tide; the retard of the tide. See under Retard, n.

The act of retarding; hindrance; the act of delaying; as, the retardation of the motion of a ship; -- opposed to acceleration.

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Usage Examples
Misspelled Form

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