hadeEnglishOxford Dictionary of Englishhade /heɪd / Geology ▸ noun the inclination of a mineral vein or fault from the vertical. ▸ verb [no object] (of a shaft, vein, or fault) incline from the vertical: it was hading eighteen inches for every fathom in depth. – ORIGIN late 17th century: perhaps a dialect form of the verb head.