acridinium

noun
ac·​ri·​din·​i·​um | \ ˌa-krə-ˈdi-nē-əm \
variants: or less commonly acridonium \ ˌa-​krə-​ˈdō-​nē-​əm \
plural -s

Definition of acridinium

: a univalent radical C13H10N analogous to ammonium derived from acridine

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!

First Known Use of acridinium

1884, in the meaning defined above

History and Etymology for acridinium

acridinium, New Latin, from International Scientific Vocabulary acridine + New Latin -ium; acridonium, New Latin, from International Scientific Vocabulary acridone + New Latin -ium

Keep scrolling for more

Learn More About acridinium

Time Traveler for acridinium

Time Traveler

The first known use of acridinium was in 1884

See more words from the same year

Dictionary Entries Near acridinium

acridine orange

acridinium

acridinyl

See More Nearby Entries 

Statistics for acridinium

Cite this Entry

“Acridinium.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/acridinium. Accessed 19 Oct. 2021.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

WORD OF THE DAY

Test Your Vocabulary

Dog Words Quiz

  • shiba puppy more or less demanding cuddles
  • Which of the following animals has a dog in its etymology?
Spell It

Can you spell these 10 commonly misspelled words?

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!