| 单词 | people sniffer |
| 释义 | > as lemmaspeople sniffer people sniffer n. a device that chemically analyses the air around the human body, or one for detecting the presence of hidden persons by chemical (or physical) means. ΚΠ 1965 Daily Tel. 5 Oct. 22/8 A person being examined is placed in a ‘people sniffer’, a glass cylinder, and an analysis of the outgoing air discloses the chemical make-up of the subject. 1977 Time 2 May 44/1 Their principal piece of equipment is a ‘people sniffer’, an electronic sensing device developed to catch the prowling Viet Cong. Despite its name, the instrument actually detects the minute seismic vibrations caused by a person walking. 2000 San Francisco Examiner (Nexis) 3 May a21 One of our secret technological marvels was a ‘people sniffer’—a device sensitive to the presence of ammonia in urine. < as lemmas |
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