tidal air

noun

: the air that passes in and out of the lungs in an ordinary breath and averages 500 cubic centimeters in a normal adult human male

Browse Nearby Words

tidal
tidal air
tidal volume
See all Nearby Words

Cite this Entry

“Tidal air.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/tidal%20air. Accessed 30 Apr. 2025.

Copy Citation

Share

Love words? Need even more definitions?

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

Popular in Grammar & Usage

See More

Words You Always Have to Look Up

How to Use Em Dashes (—), En Dashes (–) , and Hyphens (-)

Words in Disguise: Do these seem familiar?

Why is '-ed' sometimes pronounced at the end of a word?

Democracy or Republic: What's the difference?
See More

Popular in Wordplay

See More

8 Words with Fascinating Histories

'Za' and 9 Other Words to Help You Win at SCRABBLE

More Words with Remarkable Origins

Terroir, Oenophile, & Magnum: Ten Words About Wine

8 Words for Lesser-Known Musical Instruments
See More

Popular

See More

Words You Always Have to Look Up

8 Words with Fascinating Histories

'Za' and 9 Other Words to Help You Win at SCRABBLE
See More

Games & Quizzes

See All
Play Quordle: Guess all four words in a limited number of tries. Each of your guesses must be a real 5-letter word.
Quordle Can you solve 4 words at once?
Play Blossom: Solve today's spelling word game by finding as many words as you can using just 7 letters. Longer words score more points.
Blossom Word Game Pick the best words!
Play Missing Letter: a crossword with a twist. Each of the 25 puzzle words start with a different letter of the alphabet. Which letter is missing?
Missing Letter A daily crossword with a twist
artwork of illustrated limes with the text limes and smile with an arrow connecting the two words
Quiz: Spot the Anagram! Scramble these words to find new words with the e...
See All