Heteroscian

(hĕt'er-ŏsh'an), n. [Fr. hétéroscien, from Gr. ἕτερος, other, and σκιά, shadow.] (Geog.) An inhabitant of either of the two zones lying between the tropics and the polar circles, as contrasted with an inhabitant of the other in respect to the circumstance that their shadows at noon always fall in opposite directions; in the one case toward the north, in the other toward the south.

a. (Geog.) Of, or pertaining to, any portion of the earth's surface considered relatively to a certain other portion, so situated that the shadows of two objects, one being in the former and the other in the latter, fall in opposite directions.