അർത്ഥം : An imaginary line connecting points on the Earth's surface where the magnetic declination is the same.
പര്യായപദങ്ങൾ : isogonal line, isogone
Isogonic line ka meaning, vilom shabd, paryayvachi aur samanarthi shabd in Marathi. Isogonic line ka matlab kya hota hai?