[ ˌʌɪsə(ʊ)'gɒnɪk ]
■ adjective Geography denoting a line on a map connecting points at which the magnetic declination is the same.
Origin
C19: from Gk isogōnios 'equiangular' + -ic .
[ ˌʌɪsə(ʊ)'gɒnɪk ]
■ adjective Geography denoting a line on a map connecting points at which the magnetic declination is the same.
Origin
C19: from Gk isogōnios 'equiangular' + -ic .
Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004