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).
Polycythemia vera (PV)
Overproduction (proliferation) of red blood cells due to bone marrow disease (myeloproferative disorder). PV tends to evolve into acute leukemia or a condition with the marrow replaced by scar tissue (myelofibrosis). To have PV, there must…
Read the definitionRandom terms
Show more- Proposita A female through whom a family medically comes to light (is first ascertained). Also called the proband or…
- Referral The recommendation of a medical or paramedical professional. If you get a referral to ophthalmology, for…
- Tension, intraocular The pressure within the eye
- Systems biology The study of biological systems taking into account the interactions of the key elements such as DNA, RNA…
- Fovea In the eye, a tiny pit located in the macula of the retina that provides the clearest vision of all. Only in…
- Macrocephaly, multiple lipomas, and hemangiomas Bannayan syndrome, a genetic disease characterized by macrocephaly (enlarged head), multiple lipomas (benign…
- Macroglossia Enlarged tongue. Macroglossia is sometimes said to be associated with Down syndrome, but in that disorder the…
- Squamous intraepithelial lesion A general term for the abnormal growth of squamous cells on the surface of the cervix. The changes in the…
- Corn A small calloused area of skin caused by local pressure irritating tissue over a bony prominence. Corns most…
- Spermatogenesis The process of sperm formation. The term was created from the prefix 'spermato-' (Greek sperma, the seed or…
- Collagen injection The practice of injecting collagen into a part of the face or body to make it larger, most often performed on…
- Cephalgia, histamine A distinctive syndrome of headaches, also known as cluster headache or migrainous neuralgia. The common…