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).
Antigenic drift
A mechanism for variation by viruses that involves the accumulation of mutations within the antibody-binding sites so that the resulting viruses cannot be inhibited well by antibodies against previous strains making it easier for them to…
Read the definitionRandom terms
Show more- Lyon hypothesis See Lyonization
- Chloroprene A possible carcinogen (cancer-causing agent) primarily used in the production of the elastomer…
- Hypogonadism A condition in which decreased production of gonadal hormones leads to below-normal function of the gonads…
- Tooth The structures within the mouth that allow for biting and chewing. Teeth have different shapes, depending on…
- Step therapy The practice of beginning drug therapy for a medical condition with the most cost-effective and safest drug…
- Serratus posterior inferior One of the serratus muscles of the back and thorax. The serratus posterior inferior muscle originates…
- Vinca alkaloid A medication in a class of anticancer drugs that inhibit cancer cell growth by stopping cell division…
- Popcorn worker's lung A form of bronchiolitis obliterans, a severe obstructive lung disease, in workers who mix and package…
- FGFR2 A mutation (change) in the fibroblast growth factor receptor 2 (FGFR2) gene on chromosome 10 causes the…
- Unilateral Having, or relating to, one side. Unilateral is as opposed, for example, to bilateral (which means having, or…
- Adult T-cell leukemia/lymphoma See: Adult T-cell leukemia
- BMI calculation The British Medical Journal. The BMJ states that it "aims to help doctors everywhere practice better medicine…