: a molecule or chemical complex having positive charges at several sites

Browse Nearby Words

Cite this Entry

“Polycation.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/polycation. Accessed 20 Mar. 2025.

Love words? Need even more definitions?

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