(n.) One who, or that which, shortens.

abridger abstracter analyzer ax baby tooth bicuspid blade breaker bucktooth canine centrifuge cold steel crown cuspid cutlery dagger deciduous tooth dent denticle denticulation dentil dentition dogtooth edge tools epitomist epitomizer eyetooth fang finisher fore tooth gagtooth gang tooth garmentmaker garmentworker gold tooth grinder incisor knife milk tooth molar naked steel needleworker peg permanent tooth pigsticker pivot tooth point premolar puncturer scrivello separator sharpener shortener sieve snag snaggletooth steel stitcher stripper sword toad sticker tooth tush tusk whittle wisdom tooth