colloidal silver

noun

Medical Definition of colloidal silver

: a preparation consisting of silver particles suspended in liquid that is sometimes used as a dietary supplement High doses of colloidal silver can turn the skin permanently blue. Though the silver is legal to sell as a dietary supplement, the Food and Drug Administration maintains it has never been tested to prove any therapeutic value.— Brigid Schulte, The Washington Post, 20 Jan. 2008

Learn More about colloidal silver

Cite this Entry

“Colloidal silver.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/colloidal%20silver. Accessed 4 Aug. 2020.

Comments on colloidal silver

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

WORD OF THE DAY

Test Your Vocabulary

July 2020 Words of the Day Quiz

  • papercraft sunset
  • Which is a synonym of mien?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Dictionary Devil

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!