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Look up retard in Wiktionary, the free dictionary.

Look up retarded in Wiktionary, the free dictionary.

Look up retardation in Wiktionary, the free dictionary.

Retardation is the act or result of delaying; the extent to which anything is retarded or delayed; that which retards or delays. In particular, it can mean:

In medicine

• Mental retardation
• Psychomotor retardation

In science and engineering

• Negative acceleration in mechanics (i.e. rate of decrease of velocity)
• Retardation factor in chromatography
• Retarded potential in electrodynamics

Other

• A process used in proofing (baking technique)
• A suspension (music) that resolves upward instead of downward.

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