hadePronunciation: /heɪd/ GeologyDefinition of hade 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 depthOrigin: late 17th century: perhaps a dialect form of the verb headhade in other Oxford dictionaries Definition of hade in the US English dictionary