Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

morning breath

noun

Definition of morning breath

  1. :  halitosis upon awakening from sleep that is caused by the buildup of bacteria in the mouth from decreased saliva production



1986

First Known Use of morning breath

1986


Medical Dictionary

morning breath

play
noun morn·ing breath \ˈmȯr-niŋ-\

Medical Definition of morning breath

  1. :  halitosis upon awakening from sleep that is caused by the buildup of bacteria in the mouth due to decreased saliva production




Learn More about morning breath

  1. Medical Dictionary: Definition of morning breath


Seen and Heard

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

WORD OF THE DAY

not forbidden by law

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

two-chairs-on-a-pier-by-the-ocean-in-summer

Which of the following words means “of or relating to summer”?

vernal estival brumal hiemal
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