a measuring instrument for measuring and indicating a quantity such as the thickness of wire or the amount of rain etc. | a measuring instrument for measuring and indicating a quantity such as the thickness of wire or the amount of rain etc. |
the distance between the rails of a railway or between the wheels of a train | street names for marijuana |
the thickness of wire | |
diameter of a tube or gun barrel | |
accepted or approved instance or example of a quantity or quality against which others are judged or measured or compared | |