subshaft
/ˈsʌbʃɑːft/ /ˈsʌbʃaft/noun
A subsidiary shaft or vertical excavation.
Origin
Late 19th century. From sub- + shaft.
- superficiary
- superficie
- superficies
- superfine
- superfinely
- superfineness
- superfinery
- superfinesse
- superfine sugar
- superfinite
- superfish
- superfix
- superflation
- superflow
- superfluence
- superfluent
- superfluently
- superfluid
- superfluidity
- superfluity
- superfluorescence
- superfluorescent
- superfluous
- superfluously
- superfluousness