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).
Hereditary mutation
Mutation: A heritable change in the DNA of a gene or chromosome in a cell destined to become an egg or a sperm or the zygote (the conceptus) at the single-cell stage. When transmitted to a child, an hereditary mutation is incorporated in…
Read the definitionRandom terms
Show more- Nonoxynol Nonoxynol-9 is the most commonly encountered spermatocide in the United States. As with other spermatocides…
- Eye cataract A clouding of the lens of the eye. The normally clear aspirin-sized lens of the eye starts to become cloudy…
- Psoas Muscles of the lower back (the loin). There are two psoas muscles on each side of the back. The larger of the…
- Symptom Any subjective evidence of disease. Anxiety, lower back pain, and fatigue are all symptoms. They are…
- Sentinel node biopsy See: Sentinel lymph node biopsy
- Osteodystrophy Osteodystrophy: A bone disorder that adversely affects bone growth. See also renal osteodystrophy.
- Hematology-oncology The diagnosis, treatment and prevention of blood diseases (hematology) and cancer (oncology) and research…
- Mucolipidosis III A type of mucolipidosis characterized by deficiency of the enzyme N-acetylglucosamine-1-phosphotransferase…
- Menopause transition Menopause transition: A woman can usually tell if she is approaching menopause because her menstrual periods…
- Enterospasm A painful, intense contraction of the intestine
- Histidine An amino acid, one of the 20 building blocks of protein. An essential amino acid, histidine is present in…
- Genome, Saccharomyces cerevisiae The genome of the bacterium that causes cholera. This genome contains over 4 million bases in its DNA…