Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun trepan

2 senses of trepan

Sense 1
trepan, trephine -- (a surgical instrument used to remove sections of bone from the skull)
       => surgical instrument -- (a medical instrument used in surgery)

Sense 2
trepan -- (a drill for cutting circular holes around a center)
       => drill -- (a tool with a sharp point and cutting edges for making holes in hard materials (usually rotating rapidly or by repeated blows))

Synonyms/Hypernyms (Ordered by Estimated Frequency) of verb trepan

1 sense of trepan

Sense 1
trepan -- (cut a hole with a trepan, as in surgery)
       => bore, drill -- (make a hole, especially with a pointed power or hand tool; "don't drill here, there's a gas pipe"; "drill a hole into the wall"; "drill for oil"; "carpenter bees are boring holes into the wall")