line connecting points of same magnetic dip
• (a.) Alt. of Isoclinic
isoclinal, isoclinic Inclining in the same direction; of or relating to an equal direction of inclination for various items.
isoclinic adjective having equal magnetic inclinations
of or pertaining to equal direction of inclination; inclining or dipping in the same direction. · noting or pertaining to an isoclinic line. · noting or pertaining to a fold of strata that is of the nature of an isocline.