hade
/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...
- We dropped down to a lower level were we encountered a hading (inclined from the vertical) fault plane which was rather awkward and tiring as we were walking at an angle!
- After a short while we entered a fine hading rift, which we followed until the way on, became too low.
- Down to the right a small hole disappears into a hading rift.
Origin
Late 17th century: perhaps a dialect form of the verb head.