transactinide

adjective

trans·​ac·​ti·​nide tran(t)-ˈsak-tə-ˌnīd How to pronounce transactinide (audio)
tran-ˈzak-
: of, relating to, or being actual or hypothetical elements with atomic weights higher than those of the actinide series
transactinide chemistry

Word History

First Known Use

1969, in the meaning defined above

Time Traveler
The first known use of transactinide was in 1969

Dictionary Entries Near transactinide

Cite this Entry

“Transactinide.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/transactinide. Accessed 1 Dec. 2022.

Love words? Need even more definitions?

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


Words Named After People

  • name tags
  • Namesake of the leotard, Jules Léotard had what profession?
Spell It

Hear a word and type it out. How many can you get right?

TAKE THE QUIZ
Universal Daily Crossword

A daily challenge for crossword fanatics.

TAKE THE QUIZ