Retardation

Retardation or retarded or similar may refer to:

==Medicine and biology== Intellectual disability, a disorder characterized by significantly impaired cognitive functioning and deficits in adaptive behaviours, was previously referred to as "mental retardation"—the term is no longer in use due to the pejoration of the term "retardation" in this context Psychomotor retardation, a slowing-down of thought and a reduction of physical movements in an individual A form of heterochrony, able to cause effects such as neoteny, retention by adults of traits previously seen only in the young