n. 1 a person who sniffs, esp. one who sniffs a drug or toxic substances (often in comb.: glue-sniffer). 2 sl. the nose. 3 colloq. any device for detecting gas, radiation, etc. sniffer-dog colloq. a dog trained to sniff out drugs or explosives.
SNIFFER
Meaning of SNIFFER in English
Concise Oxford English dictionary. Краткий оксфордский словарь английского языка. 2012