✨📕 The NEWThe NEW Collegiate Dictionary, 12th Edition Over 5,000 words added — Buy Now! Collegiate DictionaryBuy Now!
severe combined immune deficiency; severe combined immunodeficiency

Browse Nearby Words

Cite this Entry

“SCID.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/SCID. Accessed 29 Nov. 2025.

Medical Definition

SCID

abbreviation
severe combined immunodeficiency
Love words? Need even more definitions?

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