T1R1E1P3H4I1N1E1D2
15 points
TREPHINED is validvalid
TREPHINE, to operate on with a surgical saw [v]
TREPHINE, to cut holes in the skull with a surgical saw, also TREPAN, TRAPAN [v]
TREPHINE, to operate on with a surgical saw [v]
TREPHINE, to cut holes in the skull with a surgical saw, also TREPAN, TRAPAN [v]