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What Does TID Mean in Medical Terms?
TID stands for ter in die. Three times a day.
ter in die
Three times a day.
three times a day (lowercase form)
Frequency in lowercase charting.
Where you will see TID
You will most often see TID in medication orders and prescriptions, nursing notes, care plans and handovers.
Example
A medication order might be written with “TID” as shorthand for ter in die.
Related abbreviations
- 3% saline — three percent saline (hypertonic)
- 5-FU — fluorouracil
- 6-MP — mercaptopurine
- 6-TG — thioguanine
- 7+3 — seven plus three induction
- a.c. — ante cibum (before meals)
- ABEMA — abemaciclib (chart shorthand)
- ABI — abiraterone (chart shorthand)
Browse the full Medical Abbreviations guide — 5,715 entries, searchable A–Z and by specialty.
Educational reference only. This guide is for learning and quick reference. Abbreviations vary between hospitals, countries and specialties, and some are discouraged because they can be misread. Always write and interpret orders using your own institution’s approved abbreviation list, and check anything unclear with the prescriber or your local policy.