DETECTOR Synonyms

• fear resulting from the awareness of danger

• a device that signals the occurrence of some undesirable event

• an automatic signal (usually a sound) warning of danger

• a clock that wakes a sleeper at some preset time

• fill with apprehension or alarm; cause to be unpleasantly surprised

• warn or arouse to a sense of danger or call to a state of preparedness

• someone who comes upon something after searching

• someone who is the first to observe something

• optical device that helps a user to find the target of interest

• a measuring instrument for measuring and indicating a quantity such as the thickness of wire or the amount of rain etc.

• accepted or approved instance or example of a quantity or quality against which others are judged or measured or compared

• the distance between the rails of a railway or between the wheels of a train

• the thickness of wire

• diameter of a tube or gun barrel

• judge tentatively or form an estimate of (quantities or time)

• rub to a uniform size

• determine the capacity, volume, or contents of by measurement and calculation

• measure precisely and against a standard

• adapt to a specified measurement

• mix in specific proportions

• 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 signal for attracting attention

• a device for showing the operating condition of some system

• (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

• a person who fixes the boundaries of land claims

• rectifier that extracts modulation from a radio carrier wave

• any device that receives a signal or stimulus (as heat or pressure or light or motion etc.) and responds to it in a distinctive manner