: any of a class of compounds formed by the reaction of thiols with aldehydes or ketones

Browse Nearby Words

Cite this Entry

“Mercaptal.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/mercaptal. Accessed 26 Apr. 2025.

Love words? Need even more definitions?

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