WordNet: isogonal line, isogone, isogonic line
an imaginary line connecting points on the Earth's surface where the magnetic declination is the same
- hypernym line
isogonal line
- (suomi) saman erannon viiva (synonyymi)
isogone
- (suomi) saman erannon viiva (synonyymi)
isogonic line
- (suomi) saman erannon viiva (synonyymi)