[ 'ʌɪsə(ʊ)θɪə ]
■ noun Meteorology a line on a map connecting points having the same average temperature in summer.
Origin
C19: from Fr. isothère , from Gk isos 'equal' + theros 'summer'.
[ 'ʌɪsə(ʊ)θɪə ]
■ noun Meteorology a line on a map connecting points having the same average temperature in summer.
Origin
C19: from Fr. isothère , from Gk isos 'equal' + theros 'summer'.
Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004