de·​cade-long ˈde-ˌkād-ˌlȯŋ How to pronounce decade-long (audio)
variants or less commonly decadelong
: lasting or occurring over a decade or about a decade
A decade-long drought in Saskatchewan and Alberta nesting areas has cut sharply into the number of birds migrating into Idaho …Dan Knauss
The renegade gene that causes Huntington's disease has been found after a decade-long search …Daniel Q. Haney

Word History

First Known Use

1974, in the meaning defined above

Time Traveler
The first known use of decade-long was in 1974

Dictionary Entries Near decade-long

Cite this Entry

“Decade-long.” Dictionary, Merriam-Webster, Accessed 23 Feb. 2024.

Love words? Need even more definitions?

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