sniffer
Americannoun
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a device for detecting hidden substances such as drugs or explosives, esp by their odour
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a computer program or device used to monitor, detect, and capture data on a network
Etymology
Origin of sniffer
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Trudeau’s government hired a film crew to capture two Black Hawk helicopters and a sniffer dog on patrol.
From The Wall Street Journal ● Jul. 8, 2026
But when US rescue workers and Spanish sniffer dogs found traces of life, his hopes for his two trapped brothers were rekindled.
From Barron's ● Jul. 1, 2026
As the sun was about to set, 25 Mexican soldiers with sniffer dogs showed up, one of many foreign crews rushing in to help Venezuela cope.
From Barron's ● Jun. 28, 2026
Even though the chief sniffer, The Dog is no longer here, bitter melons still appear like clockwork reminding me that home, and my own, isn’t, aren’t too far away.
From Salon ● May 9, 2026
Truant officers and their sniffer dogs'd be put on my trail.
From "Black Swan Green" by David Mitchell
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
