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- MYH syndrome See: MYH
- Femoral Having to do with the femur or, less often, the thigh. As in the femoral head (the head of the femur), the…
- Dermal Suffix indicating a relationship to the skin. As in ectodermal, endodermal, and mesodermal; epidermal; and an…
- Radiolucent Anything that permits the penetration and passage of X-rays or other forms of radiation. Radiolucent is as…
- Macrophagic myofasciitis A muscle disease first identified in 1993, macrophagic myofasciitis is named for the findings seen in tissue…
- Lentigo maligna melanoma See: Melanoma, lentigo maligna
- Differential diagnosis The process of weighing the probability of one disease versus that of other diseases possibly accounting for…
- Lining, uterine The inner layer of the uterus (womb); the cells that line the womb; anatomically termed the endometrium. This…
- Oneiric Relating to dreams; dream-like. From the Greek 'oneiros' (dream). See oneirophrenia
- Acquired immunity Immunity acquired by infection or vaccination (active immunity) or by the transfer of antibody or lymphocytes…
- Pulmonary valve One of the four valves in the heart, the pulmonary valve stands at the opening from the right ventricle in…
- Ethnography The study of specific human cultures. The branch of anthropology that deals with the scientific description…