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).
Primary amenorrhea
Absence of menstruation. Amenorrhea is conventionally divided into primary and secondary amenorrhea. With primary amenorrhea, menstruation never takes place. It fails to occur at puberty. With secondary amenorrhea, menstruation starts but…
Read the definitionRandom terms
Show more- Duct A passage or a tube with well-defined walls suitable for the conveyance of air or liquids, as the bile duct…
- Diabetes, non-insulin-dependent Type 2 diabetes. See also Diabetes, type 2.
- Morphia Another name for morphine. Both morphia and morphine come from the name of Morpheus, the ancient god of sleep…
- Schmorl's node An upward and downward protrusion (pushing into) of a spinal disk's soft tissue into the bony tissue of the…
- Proteus syndrome A disturbance of cell growth including benign tumors under the skin, overgrowth of the body, often more on…
- Test, PSA See: PSA
- Syndrome, Horner A complex of abnormal findings, namely sinking in of one eyeball, ipsilateral ptosis (drooping of the upper…
- P. acnes See: Propionibacterium acnes
- Osteo- (prefix) Combining form meaning bone. From the Greek 'osteon', bone. Appears for instance in osteoarthritis…
- Sclerosis Localized hardening of skin
- Storm supplies kit The onshore rush of sea or lake water caused primarily by the high winds that are associated with a…
- Balloon tamponade A procedure in which a balloon is inflated within the esophagus or stomach to apply pressure on bleeding…