morphactin

noun

mor·​phac·​tin mȯr-ˈfak-tən 

: any of several synthetic fluorine-containing compounds that tend to produce morphological changes and suppress growth in plants

Word History

Etymology

probably from morph- + active + -in entry 1

First Known Use

1966, in the meaning defined above

Rhymes for morphactin

• prolactin
• actin