rainbow pill

noun

Medical Definition of rainbow pill

slang
: any of a combination of pills (as of amphetamines, laxatives, and thyroid hormones) typically of different colors that were formerly taken to curb appetite and promote weight loss

Learn More about rainbow pill

Cite this Entry

“Rainbow pill.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/rainbow%20pill. Accessed 31 Oct. 2020.

Comments on rainbow pill

What made you want to look up rainbow pill? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

Test Your Vocabulary

Here Be Dragons: A Creature Identification Quiz

  • monster werewolf photo
  • Which is a synonym of werewolf?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Citation

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ
Love words? Need even more definitions?

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