A blinking light mounted near the left and right front and rear corners of a vehicle, and sometimes on the sides, used to indicate the intention of a lateral change of position (turn or lane change).
a number or ratio (a value on a scale of measurement) derived from a series of observed facts; can reveal relative changes as a function of time
a device for showing the operating condition of some system
a signal for attracting attention
(chemistry) a substance that changes color to indicate the presence of some ion or substance; can be used to indicate the completion of a chemical reaction or (in medicine) to test for a particular reaction
