sniffer

noun sniff·er \ ˈsni-fər \

Definition of sniffer

1 :one that sniffs: such as
a :someone who sniffs a drug or other substance in order to become intoxicated
  • a cocaine/glue sniffer
b or less commonly sniffer dog :a dog that is trained to recognize and follow scents especially for the purpose of locating people or contraband (such as illicit drugs and explosives)
2 informal :nose
  • Use your sniffer to detect unattractive or unhealthy odors.
  • —Susan DeBow

Examples of sniffer in a Sentence

  1. Sniffers were brought in to search bags at the airport.

Recent Examples of sniffer from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'sniffer.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of sniffer

1864


SNIFFER Defined for English Language Learners

sniffer

noun

Definition of sniffer for English Language Learners

  • : someone who sniffs a drug or other substance in order to become intoxicated

  • : a dog that is trained to find people, illegal drugs, explosives, etc., by recognizing and following scents


Learn More about sniffer


Seen and Heard

What made you want to look up sniffer? Please tell us where you read or heard it (including the quote, if possible).

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

WORD OF THE DAY

pleasing or sweet sound

Get Word of the Day daily email!

Test Your Vocabulary

Forms of Government Quiz

  • knupfer-painting-solon-before-croesus
  • A gerontocracy is rule by:
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

TAKE THE QUIZ
Word Winder's CrossWinder

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!