マイナスのねじ回まわしMeanings1nounflat-bladed screwdrivercomputing›A screwdriver with a flat tip, used for slotted screws. Often contrasted with プラスのねじ回し (Phillips screwdriver).このネジはマイナスのねじ回まわしで締しめてください。Please tighten this screw with a flat-bladed screwdriver.