in constant change | a measuring instrument for measuring and indicating a quantity such as the thickness of wire or the amount of rain etc. |
(physics) the number of changes in energy flow across a given surface per unit area | the distance between the rails of a railway or between the wheels of a train |
a flow or discharge | the thickness of wire |
the lines of force surrounding a permanent magnet or a moving charged particle | diameter of a tube or gun barrel |
excessive discharge of liquid from a cavity or organ (as in watery diarrhea) | accepted or approved instance or example of a quantity or quality against which others are judged or measured or compared |
a state of uncertainty about what should be done (usually following some important event) preceding the establishment of a new direction of action | |
a substance added to molten metals to bond with impurities that can then be readily removed | |
the rate of flow of energy or particles across a given surface | |