Merriam-Webster Logo
SINCE 1828
Menu
dictionary thesaurus

self-rescuer

noun

Definition of self-rescuer 

: a pocket-size respirator for emergency use that protects the wearer for a period of about one-half hour against atmospheres containing carbon monoxide gas (as in a contaminated mine)

Love words?

You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Start your free trial today and get unlimited access to America's largest dictionary, with:

  • More than 250,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!

Learn More about self-rescuer

Share self-rescuer

Resources for self-rescuer

Cite Time Traveler Time Traveler! Explore the year a word first appeared

Dictionary Entries near self-rescuer

self-reproof

self-reproving

self-repugnant

self-rescuer

self-respect

self-respectful

self-respecting

Statistics for self-rescuer

Look-up Popularity

Comments on self-rescuer

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

Show Comments  Hide Comments 

WORD OF THE DAY

lenitive

alleviating pain or harshness

Get Word of the Day daily email!

Test Your Vocabulary

Musical Words Quiz

  • gramophone
  • Which word describes a musical performance marked by the absence of instrumental accompaniment?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
SCRABBLE® Sprint

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!

Words at Play

Ask the Editors

Word Games