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).
Gland, mammary
One of the glands within the breast that secrete milk when prompted to do so by special hormones. Mammary glands are slightly tender to the touch, and may become more so during menstruation or pregnancy. They become enlarged when engorged…
Read the definitionRandom terms
Show more- Glaucoma, acute angle-closure Glaucoma, acute angle-closure: Increased pressure in the front chamber (anterior chamber) of the eye due to…
- Randomized controlled trial (RCT) A study in which people are allocated at random (by chance alone) to receive one of several clinical…
- Amino acid, branched-chain One of the amino acids that has a branch chain, namely, Leucine, isoleucine, and valine
- Benign paroxysmal positional vertigo (BPPV) A balance disorder that results in the sudden onset of dizziness, spinning, or vertigo when moving the head
- Cranial nerve XII The twelfth cranial nerve is the hypoglossal nerve. The twelve cranial nerves, the hypoglossal nerve…
- Nucleocapsid The genome + the protein coat of a virus. The nucleic acid (RNA or DNA) of the virus is its genome. The…
- Attention deficit disorder (ADD) Attention deficit disorder (ADD): An inability to control behavior due to difficulty in processing neural…
- Craniology The study of variations in size, shape, and proportion of the skull (cranium). Also known as phrenology, it…
- Downregulation An decrease in the number of receptors on the surface of target cells, making the cells less sensitive to a…
- Procedure, Whipple See: Whipple procedure
- Antimicrobial resistance The result of microbes changing in ways that reduce or eliminate the effectiveness of drugs, chemicals, or…
- Tapeworm, beef See Taenia saginata.