retardation

Noun

Meaning

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

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.

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

Source: Webster's dictionary

Synonyms

lag slowness backwardness deceleration slowdown retardant slowing mental retardation subnormality retardent lagan late retard stop stay
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Antonyms

addition help deal advantage aid edge
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Hypernyms

change hold agent delay wait modification

Hyponyms

abnormality idiocy imbecility amentia moronity mental deficiency

Related terms

retard retarded retardant retarder retardative retardate

Phrases with the word

intellectual retardation growth retardation with intellectual disability and facial dysmorphism growth retardation alpha-thalassemia mental retardation syndrome

Examples

the deceleration of the arms race Source: Internet

flame-retardant Source: Internet

And even now, advocates for patients with disabilitiesthe guidance provided in some states, are unfair to people with severe mental retardation or those in a persistent vegetative state. Source: Internet

Before his death, however, the retardation of light in denser media was demonstrated by the experiments of H. L. Fizeau and B. L. Foucault, which, with improvements in detail, were based on the plan proposed by him. Source: Internet

A part of the answer was suggested independently in the 1860s by Delaunay and by William Ferrel : tidal retardation of Earth's rotation rate was lengthening the unit of time and causing a lunar acceleration that was only apparent. Source: Internet

Extracting the spectrum The intensity as a function of the path length difference (also denoted as retardation) in the interferometer and wavenumber is Peter Atkins, Julio De Paula. 2006. Source: Internet

Close letter words and terms

retardancy retardant retardate retardational retardative retardatory