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).
Receptor, T-cell
A molecule on the surface of T-lymphocytes (T-cells) for recognizing specific antigens (foreign substances or microbes such as viruses)
Read the definitionRandom terms
Show more- Balanitis Inflammation of the rounded head (the glans) of the penis. Inflammation of the foreskin is called posthitis…
- Bi- Prefix meaning two, as in biceps or bicuspid
- PEG Stands for percutaneous endoscopic gastrostomy, a surgical procedure for placing a feeding tube without…
- Change of life The change of life is the menopause, the time in a woman's life when menstrual periods permanently stop…
- Thoracotomy An operation to open the chest
- Pregnancy abuse Abuse of an expectant mother. This abuse is most often perpetrated by the woman's spouse, partner, or…
- Deformity, cauliflower-ear Deformity, cauliflower-ear: Destruction of the underlying cartilage framework of the outer ear (pinnae)…
- Hydrocephalus, acquired Hydrocephalus due to a postnatal cause, something that happened sometime after birth
- Cod liver oil An oil extracted from the liver of the cod. Cod liver oil was once given religiously to children every day as…
- Cone A type of specialized light-sensitive cell (photoreceptor) in the retina of the eye that provide sharp…
- Ear, cauliflower An acquired deformity of the external ear to which wrestlers and boxers are particularly vulnerable. The…
- DNA, satellite DNA that contains many tandem (not inverted) repeats of a short basic repeating unit. Satellite DNA is…