Definition

Noun: A trace detector is a specialized screening device designed to identify minute quantities of specific substances, most commonly explosives. Its primary function is security screening, and it is frequently employed at high-security locations such as airport terminals to check passengers, luggage, or cargo for dangerous residues.

Usage

The term is used as a compound noun. It refers to the physical device or the category of technology used for security purposes. * Security personnel use a trace detector to swab a piece of luggage. * The new trace detector at the checkpoint can identify several new explosive compounds. * All carry-on bags are subject to screening by a trace detector.

Advanced Usage

• The phrase often appears in technical, security, and aviation contexts discussing threat detection methodologies and equipment.
• It can be part of longer noun phrases specifying the type, such as "ion mobility spectrometry trace detector" or "portable trace detector."

Variants and Related Words

• Explosives trace detector (ETD): A more specific term for the most common type of trace detector.
• Detector: The general device for discovering the presence of something.
• Scanner: A broader term for electronic screening devices.

Synonyms

• Explosives detector
• Vapor detector
• Chemical sniffer (informal)

Related Phrases

• To swab for traces: The action of collecting a sample for a trace detector.
  • The officer will swab your laptop for traces of explosives.
• Trace detection: The process or technology itself.
  • Trace detection is a critical layer of airport security.

Noun

1. a screening device for traces of explosives; used at airline terminals