idiot
n
1 a person with severe mental retardation
2 a foolish or senseless person (C13: from Latin idiota ignorant person, from Greek idiotes private person, one who lacks professional knowledge, ignoramus; see idio-)
idiot board
n a slang name for →
Autocue
idiot box
n
Slang a television set
idiot savant
n pl , idiots savants , idiot savants a person of subnormal intelligence who performs brilliantly at some specialized intellectual task, such as giving the day of the week for any calendar date past or present
(C19: from French: knowledgeable idiot)
idiot tape
n (Printing) an input tape for a typesetting machine that contains text only, the typographical instructions being supplied by the typesetting machine itself