Merriam-Webster Logo
SINCE 1828
Menu
×

An Encyclopædia Britannica Company

See What's Trending Now See More Trending Words

perchloric acid

play
noun per·chlo·ric acid \(ˌ)pər-ˈklȯr-ik-\

Definition of perchloric acid

  1. :  a fuming corrosive strong acid HClO4 that is the most highly oxidized acid of chlorine and a powerful oxidizing agent when heated

See perchloric acid defined for kids

People Are Reading

bunch-of-yellow-balloons-lit-by-the-sun
Helium: This Word Brought to You by a Solar Eclipse
a-woman-waits-at-the-end-of-a-gloomy-pier-does-she-wait-for-charon-the-ferryman-to-the-underworld-it-is-dark-but-she-carries-a-parasol
Vocabulary Thrives in Darkness
time-traveler-quiz-which-word-came-first
Time Traveler Quiz: Which Word Came First?
video-title-words-of-the-year-1066
Words of the Year: 1066

First Known Use of perchloric acid

1817

Medical Dictionary

perchloric acid

play
noun per·chlo·ric acid \(ˌ)pər-ˌklōr-ik-, -ˌklȯr-\

Medical Definition of perchloric acid

  1. :  a fuming corrosive strong acid HClO4 that is the highest oxyacid of chlorine and a powerful oxidizing agent when heated

Learn More about perchloric acid

  1. Britannica.com: Encyclopedia article about perchloric acid

Seen and Heard

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

show hide

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

hebetude

play

lethargy or dullness

Get Word of the Day daily email!

TRENDING NOW

  1. Svengali 'A person who manipulates'

  2. syzygy An obscure astronomy term goes mainstream

  3. hegemon "Something having dominant influence over others"

  4. repugnant Trump clarifies his position on racism

  5. white nationalist, white supremacist Trending in 2017

SEE ALL

BROWSE DICTIONARY

perchloric acid

Test Your Vocabulary

Time Traveler Quiz: Which Word Came First?

  • time-traveler-quiz-which-word-came-first
  • Which came first?
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!

Words at Play

a-woman-waits-at-the-end-of-a-gloomy-pier-does-she-wait-for-charon-the-ferryman-to-the-underworld-it-is-dark-but-she-carries-a-parasol
Great Words for Twilight and Darkness

Words for the goth in all of us

bunch-of-yellow-balloons-lit-by-the-sun
Helium: This Word Brought to You by a Solar Eclipse

And by the Sun, with some help from Greek.

watercolor-squares
We're Down With You Being—or Your Being?—a Square

It's about (you? your?) having your say.

image1489982902
Devilish Words

Don't blame a word use error on the devil.

Ask the Editors

video-title-words-of-the-year-1066
Words of the Year: 1066

Or, Why Pig Meat is Called 'Pork' and Cow Meat is Called 'Beef'

payday
How Often Is 'Biweekly'?

Don't get us started on 'bimonthly'

video-irregardless-grammar-peeve-blend-of-the-synonyms-irrespective-and-regardless
Irregardless

It is in fact a real word (but that doesn't mean you should use it).

video-moose-goose-weird-plurals
Weird Plurals

One goose, two geese. One moose, two... moose. What's up with that?

Word Games

time-traveler-quiz-which-word-came-first
Time Traveler Quiz: Which Word Came First?

Which word entered the English language first?

Take the quiz
name-more-food
Name More Food!

Test your knowledge of food vocabulary!

Take the quiz
How Strong Is Your Vocabulary?
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

Take the quiz
Word Winder's CrossWinder
Word Winder's CrossWinder

A game of winding words.

Play the game