• noun
• synonym
• antonym

• crystal detector (noun)
  1. a detector consisting of a fine wire in contact with a galena crystal; acts as a rectifier
• lie detector (noun)
  1. a piece of equipment used especially by the police to check whether someone is lying, by measuring sudden changes in their heart rate
• metal detector (noun)
  1. a machine used to find pieces of metal that are buried under the ground
  2. a special frame that you walk through at an airport, used to check for weapons made of metal
• mine detector (noun)
  1. detector consisting of an electromagnetic device; used to locate explosive mines
• particle detector (noun)
  1. a chamber in which particles can be made visible
• smoke detector (noun)
  1. a SMOKE ALARM
• trace detector (noun)
  1. a screening device for traces of explosives; used at airline terminals
• More