pH meter

noun

: an apparatus for measuring the strength or the amount of acid present in a mixture or solution

called also acidimeter

Word History

First Known Use

1932, in the meaning defined above

Time Traveler
The first known use of pH meter was in 1932

Rhymes for pH meter

See All Rhymes for pH meter

Browse Nearby Words

phlyctenula
pH meter
Phnom Penh
See all Nearby Words

Cite this Entry

“PH meter.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/pH%20meter. Accessed 24 Jun. 2025.

Copy Citation

Share

More from Merriam-Webster on pH meter

Britannica.com: Encyclopedia article about pH meter

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

'Affect' vs. 'Effect'

Using Bullet Points ( • )

'Sneaked' or 'Snuck': Which is correct?

Words You Always Have to Look Up

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

Popular in Wordplay

See More

How 'Namaste' Entered The English Language

12 Lovely and Unusual Words for the Natural World

10 Hella Good U.S. Regionalisms

Better Ways to Say 'This Sucks'

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

Popular

See More

'Affect' vs. 'Effect'

How 'Namaste' Entered The English Language

12 Lovely and Unusual Words for the Natural World
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 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
tarsier
Quiz: Guess the Mammal No animals were harmed, or stumped, in the making...
See All