mor·​phac·​tin mȯr-ˈfak-tən How to pronounce morphactin (audio)
: any of several synthetic fluorine-containing compounds that tend to produce morphological changes and suppress growth in plants

Word History


probably from morph- + active + -in entry 1

First Known Use

1966, in the meaning defined above

Time Traveler
The first known use of morphactin was in 1966

Dictionary Entries Near morphactin

Cite this Entry

“Morphactin.” Dictionary, Merriam-Webster, Accessed 19 Jul. 2024.

Love words? Need even more definitions?

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