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).
Ot-
Prefix meaning ear, used before a vowel, as in otalgia and otitis. Before a consonant, ot- becomes oto-, as in otolaryngologist and otoscope. From the Greek 'otos' pertaining to the ear
Read the definitionRandom terms
Show more- Hospital gown A short collarless gown that ties in the back, worn by patients being examined or treated in a doctor's…
- Micro- Prefix derived from the Greek 'mikros' meaning small. Examples of the many biomedical terms containing…
- Joint, temporomandibular Joint that hinges the lower jaw (mandible) to the skull. Abbreviated TMJ or TM joint.
- Blood-brain barrier A protective network of blood vessels and cells that filters blood flowing to the brain.
- Placental growth factor A type of vascular endothelial growth factor. Placental growth factor is expressed not only in placental…
- Cryptosporidium enteritis See: Cryptosporidiosis
- Hormone, TSH Stands for Thyroid Stimulating Hormone. Also known as thyrotropin
- Frailty syndrome A condition, seen particularly in older patients, characterized by low functional reserve, easy tiring…
- FGFR2 A mutation (change) in the fibroblast growth factor receptor 2 (FGFR2) gene on chromosome 10 causes the…
- Internist A physician who specializes in the diagnosis and medical treatment of adults. This specialty, called internal…
- CDHR Center for Devices & Radiological Health, part of the FDA (the US Food & Drug Administration)
- Rectal exam, digital (DRE) An exam done to detect abnormalities that can be felt (palpated) from within the rectum. The doctor inserts a…