1. noun /rɪˈtɑː(ɹ)d,rɪˈtɑɹd,ˈriːtɑː(ɹ)d,riːtɑɹd/
b) a person with mental retardation
Syn: delay, hold-up, retardation, idiot, tard, imbecile, mental deficient, moron, learning difficulties
2. verb /rɪˈtɑː(ɹ)d,rɪˈtɑɹd,ˈriːtɑː(ɹ)d,riːtɑɹd/
a) To keep delaying; to continue to hinder; to prevent from progress; to render more slow in progress; to impede; to hinder
retard the march of an army
b) To put off; to postpone.
retard the motion of a ship
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