rock drill 1
noundomain: artefact
Princeton WordNet [ver.3.1]
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EnglishDefinition
a drill for penetrating rock
Hypernym
drill 1
noun
a tool with a sharp point and cutting edges for making holes in hard materials (usually rotating rapidly or by repeated blows)
EnglishHyponym
cross bit 1
noun
a rock drill having cruciform cutting edges; used in mining
star drill 1
noun
a steel rock drill with a star-shaped point that is used for making holes in stones or masonry; it is operated by hitting the end with a hammer while rotating it between blows
straight flute 1
noun
a rock drill with flutes that are straight
