MedicalVocabulary.org
Medical vocabulary with 16,436 clear, complete and reliable definitions.
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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).
Facultative
1. In general, not obligatory but rather capable of adapting to different conditions. The opposite of facultative is obligate.2. In bacteriology, bacteria that can grow under either aerobic or anaerobic circumstances (with or without…
Read the definitionRandom terms
Show more- Bowel Another name for the intestine. The small bowel and the large bowel are the small intestine and large…
- Plexus 1. In medicine, a network or tangle of lymphatic vessels, nerves, or veins. For example, the brachial plexus…
- Midwife A person trained to assist a woman during childbirth. Many midwives also provide prenatal care for pregnant…
- Syndrome, deafness-ichthyosis-keratitis See Keratitis-ichthyosis-deafness syndrome
- Amebic dysentery Dysentery (inflammation of the intestine) with ulcers in the colon due to infection with an ameba (Entamoeba…
- Nasal passage The walls of the nasal passages are coated with respiratory mucous membranes which contain innumerable tiny…
- Cyanide >First, get fresh air by leaving the area where the cyanide was released. Moving to an area with fresh air is…
- Hypoalbuminemia An abnormally low blood level of albumin. Normally, albumin is the most plentiful protein in human blood and…
- Calf bone Familiar name for the fibula, the lateral (outside) and smaller of the two long bones in the lower leg. The…
- FMO3 Abbreviation for the enzyme, flavin-containing monooxygenase-3. See Fish-odor syndrome
- Transaminase biochemistry The transaminases are enzymes that catalyze chemical reactions in the body in which an amino group is…
- Osteomalacia Softening of bone, particularly in the sense of bone weakened by demineralization (the loss of mineral) and…