Definitions for: Retard

[n] a person of subnormal intelligence
[v] cause to move more slowly or operate at a slower rate; "This drug will retard your heart rate"
[v] lose velocity; move more slowly; "The car decelerated"
[v] slow the growth or development of; "The brain damage will retard the child's language development"
[v] be delayed

Webster (1913) Definition: Re*tard", v. t. [imp. & p. p. Retarded; p. pr. & vb.
n. Retarding.] [L. retardare, retardatum; pref. re- re- +
tardare to make slow, to delay, fr. tardus slow: cf. F.
retarder. See Tardy.]
1. To keep delaying; to continue to hinder; to prevent from
progress; to render more slow in progress; to impede; to
hinder; as, to retard the march of an army; to retard the
motion of a ship; -- opposed to accelerate.

2. To put off; to postpone; as, to retard the attacks of old
age; to retard a rupture between nations.

Syn: To impede; hinder; obstruct; detain; delay;
procrastinate; postpone; defer.

Re*tard", v. i.
To stay back. [Obs.] --Sir. T. Browne.

Re*tard", n.
Retardation; delay.

Retard, or Age, of the tide, the interval between the
transit of the moon at which a tide originates and the
appearance of the tide itself. It is found, in general,
that any particular tide is not principally due to the
moon's transit immediately proceeding, but to a transit
which has occured some time before, and which is said to
correspond to it. The retard of the tide is thus
distinguished from the lunitidal interval. See under
Retardation. --Ham. Nav. Encyc.

Synonyms: changeling, check, cretin, half-wit, idiot, imbecile, moron, slow, slow up

Antonyms: accelerate, quicken, speed, speed up

See Also: alter, be, change, dampen, deaden, decelerate, delay, detain, hold up, simple, simpleton, slow down, stay

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