MedicalVocabulary.org
Medical vocabulary with 16,436 clear, complete and reliable definitions.
About MedicalVocabulary.org
The most complete online medical dictionary: 16,436 terms covering anatomy, physiology, pathologies, diagnostic exams, pharmacology and every clinical specialty.
Designed for 3 kinds of users:
- Patients and family who want to understand a diagnosis, a medical report or instructions from a doctor.
- Students of medicine, nursing, physiotherapy and the health professions, dealing with technical terminology.
- Doctors, pharmacists and healthcare workers who need a quick and reliable reference.
Definitions are written in clear, accessible language while keeping the rigor required for professional use. Each term has a dedicated URL, instant autocomplete search, and can be shared on WhatsApp, Facebook, X and via email with one click.
- 100% free
- No registration
- No intrusive ads
- Privacy by design
- Mobile friendly
Disclaimer: the content is for informational and educational purposes only and does not replace medical advice. If you have doubts about your health, always consult a qualified professional. In case of emergency call your local emergency number (911 in the US, 112 in the EU).
T.i.d. (on prescription)
Seen on a prescription, t.i.d. means three times a day. It is an abbreviation for 'ter in die' which in Latin means three times a day. The abbreviation t.i.d. is sometimes written without a period either in lower-case letters as 'tid' or…
Read the definitionRandom terms
Show more- TPA See: Tissue plasminogen activator
- Hormone, parathyrin See Hormone, parathormone
- Lunule 1. The crescent-shaped area at the base of a fingernail or toenail. 2. Any small crescent- or moon-shaped…
- Tetany >Hyperreflexia (overactive neurological reflexes), >Carpopedal spasm (spasms of the hands and feet), >Cramps…
- Sternal rib One of the first 7 pairs of ribs. A rib is said to be a 'sternal' rib or a 'true' rib if it attaches to the…
- Crypto Popular name for both the parasite, Cryptosporidium parvum, and the disease it causes, cryptosporidiosis
- Spinocerebellar Pertaining to the spinal cord and the cerebellum, as in spinocerebellar ataxia (ataxia with cerebellar…
- Pineal region tumor A brain tumor on or near the pineal gland. There are at least 17 types of pineal gland tumors, most of which…
- Osler's nodes These are small (the size of split peas), tender, transient nodules in the pads of fingers and toes and the…
- Schizotypal personality disorder A type of personality characterized by unusual patterns of speech and behavior and by social withdrawal. See…
- Hepatic duct, common See: Common hepatic duct
- Leucovorin Folinic acid, the active form of folic acid in the body. Used as an antidote to protect normal cells from…