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.
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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).
Oligospermia
Fewer sperm than normal. Azoospermia, by contrast, means absolutely no sperm at all.
Read the definitionRandom terms
Show more- Ambiguous genitalia Genitalia that are neither typically female nor typically male. Also known as intersexual genitalia. Girls…
- Compartment syndrome A condition in which there is swelling and an increase in pressure within a limited space (a compartment)…
- Scabies Scabies: Infestation of the skin by the human itch mite, Sarcaptes scabies. The initial symptom of scabies…
- Practice, family The medical specialty which provides continuing and comprehensive health care for the individual and family…
- Succenturiate placenta An extra placenta separate from the main placenta. In anatomy 'succenturiate' means substituting for or…
- Itch, seabather's An intensely itchy rash due to contact with the tiny thimble jellyfish (Linuche unguiculata). These jellyfish…
- Premature baby A baby born before 37 weeks of gestation have passed. Historically, the definition of prematurity was 2500…
- Central venous catheter See: Catheter, central venous
- Proteins, G These molecules have been described as 'biological traffic lights.' Located inside the cell, G proteins are…
- Joint, acetabular The hip joint by another name. The acetabulum is the cup-shaped socket of the hip joint. It is a key feature…
- Vaginal introitus The vaginal opening is called the introitus of the vagina. The Latin word 'introitus' comes from 'intro'…
- Hydrocephalus Hydrocephalus: Hydrocephalus is an abnormal buildup of cerebrospinal fluid (CSF) in the ventricles of the…