Meanings
- uncountableAn appetite suppressant of the amphetamine and phenethylamine classes.
I took the phentermine pills and started quietly obsessing about losing weight again.
2010, Jillian Lauren, Some Girls, page 231
Origin
Contraction of phenyl-tertiary-butylamine.
Full word history & related roots →Cite this entry
phentermine. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/phentermine
“phentermine.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/phentermine. Accessed November 3, 2026.
WatkinsX Dictionary, s.v. “phentermine,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/phentermine.
Source: phentermine on Wiktionary, CC BY-SA 4.0.