Meaning of IMAX in English

IMAX

[ 'ʌɪmaks ]

■ noun trademark a cinematographic technique which produces an image approximately ten times larger than that from standard 35 mm film.

Origin

1960s: from i- (prob. representing a pronunciation of eye ) + max (short for maximum ).

Concise Oxford English vocab.      Сжатый оксфордский словарь английского языка.