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.
- 100% free
- No registration
- No intrusive ads
- Privacy by design
- Mobile friendly
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).
T cell, peripheral
A T cell found in the peripheral blood rather than in the lymphatic system.
Read the definitionRandom terms
Show more- Ear tubes Ear tubes: Formally known as tympanostomy tubes, ear tubes are small plastic tubes inserted into the eardrum…
- Noncompliance The failure or refusal to comply: the failure or refusal to conform and adapt one's actions to a rule or to…
- Mask of pregnancy Muddy-brown pigmentation on the cheeks or elsewhere on the face that develops in about half of all women…
- Informed consent A process in which a person learns key facts about a clinical trial, including potential risks and benefits…
- Cranial nerve, sixth The sixth cranial nerve is the abducent nerve. It is a small motor nerve that has one task: to supply a…
- Down syndrome Down syndrome: A common chromosome disorder due to an extra chromosome number 21 (trisomy 21). Down syndrome…
- Phrenology The study of variations in size, shape, and proportion of the cranium. Phrenology was a pseudoscience of the…
- Defibrillator, implantable cardiac A device put within the body that is designed to recognize certain types of abnormal heart rhythms…
- Lightening Not to be confused with a discharge of atmospheric electricity, lightening refers to the sensation that a…
- Allergy Allergy: A misguided reaction to foreign substances by the immune system, the body system of defense against…
- Second cranial nerve The second cranial nerve is the optic nerve, the nerve that connects the eye to the brain and carries the…
- Lesbian Female homosexual. The name 'lesbian' comes from the Greek island of Lesbos in the Aegian Sea where in…