to be taken three times a day
used in writing prescriptions

Word History

Etymology

Latin ter die sumendum

Dictionary Entries Near tds

Cite this Entry

“Tds.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/tds. Accessed 22 Dec. 2024.

Love words? Need even more definitions?

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