northwesternmost adjective1 •Farthest northwest.Hequ (HUH-CHYOO), town, ⊙ Hequ co. (1990 pop. 128,029), northwesternmost Shanxi prov., China, at the Great Wall, 65 mi/105 km NW of Ningwu, and on Huang He (Yellow R.);[…] — 1998
