straightedge   (TTS Sound)

The straightedge has 1 Senses.

• straightedge
• 規則
• hand tool consisting of a flat rigid rectangular bar (metal or wood) that can be used to draw straight lines (or test their straightness)
• 直線を引く（あるいは直線を確かめる）のに使われる（金属製または木製の）平らで堅い長方形の棒から成る手道具