aclin·ic line | \ (ˈ)ā-¦kli-nik- \
Definition of aclinic line
: an imaginary line on the earth's surface roughly parallel to the geographical equator and passing through those points where a magnetic needle if suspended freely has no dip or inclination and assumes a horizontal position
— called also magnetic equator
— compare agonic line, isoclinic lineKeep scrolling for more
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