pruning knife(n = noun.artifact) - a knife with a curved or hooked blade;
is a kind of knife

bolo knife, bowie knife, bread knife, butcher knife, butter knife, carving knife, case knife, clasp knife, fish knife, flick knife, hunting knife, knife, knife blade, knife edge, knife fight, knife pleat, knife switch, knife thrust, linoleum knife, palette knife, paper knife, paring knife, pocket knife, pruning, pruning hook, pruning saw, pruning shears, putty knife, sheath knife, spalding knife, spalting knife, steak knife, surgical knife, switchblade knife, table knife, trench knife