Meaning of ADIABATIC in English

ADIABATIC

[ ˌeɪdʌɪə'batɪk , ˌadɪə- ]

■ adjective Physics

1》 denoting a process or condition in which heat does not enter or leave the system concerned.

2》 impassable to heat.

Derivatives

~ally adverb

Origin

C19: from Gk adiabatos 'impassable', from a- 'not' + dia 'through' + batos 'passable'.

Concise Oxford English vocab.      Сжатый оксфордский словарь английского языка.