body scanner; full-body scanner
Technical term for a type of detector used at airports to scan passengers. Not an everyday word; mainly encountered in security contexts.
I passed through the body scanner at the airport.
A metal detector, which only detects metal objects, while 身体装検器 is a full-body scanner that can detect non-metallic items as well.
Compound of 身体 (body), 装 (equipment/clothing), 検 (inspect), and 器 (device). The exact derivation is uncertain; it appears to be a technical coinage for security screening equipment.