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).
Circadian
Refers to events occurring within a 24-hour period, in the span of a full (24-hour) day, as in a circadian rhythm. Circadian rhythmicity is a fundamental property possessed by all organisms. These rhythms are driven by an internal…
Read the definitionRandom terms
Show more- Dynein A family of microtubule motor proteins that derive energy from ATP (adenosine triphosphatase) activity. The…
- Nerve, first cranial The first cranial nerve is the olfactory nerve, the nerve that carries impulses for the sense of smell from…
- Postmature infant A baby born 2 weeks (14 days) or more after the usual 9 months (280 days) of gestation. The gestation (length…
- Gas, laughing Nitrous oxide, a gas capable of causing general anesthesia. Today nitrous oxide is sometimes given in the…
- Elbow, cellulitis of the Inflammation of the skin around the elbow due to infection (cellulitis) commonly occurs as a result of…
- Heart-hand syndrome See: Holt-Oram syndrome
- CNM Certified Nurse-Midwife
- Iliac horns Symmetrical bilateral central posterior iliac processes. In other words, horn-like malformations of the crest…
- Chlorpyrifos An insecticide that has adverse neurological effects. Also known as Dursban. Chlorpyrifos causes weakness…
- Streptococcus A group of bacteria, familiarly known as strep, that cause a multitude of diseases. The name comes from the…
- Epidermal Pertaining to the epidermis, the outermost layer of the skin
- Dysphonia, spastic See: Spasmodic dysphonia