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).
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- Periaortic Around the aorta. The aorta is the great artery that comes from the left ventricle of the heart and delivers…
- Edema, hereditary angioneurotic Edema, hereditary angioneurotic: A genetic form of angioedema. (Angioedema is also referred to as Quinke's…
- Colitis, granulomatous Crohn's disease of the colon (the large intestine). Crohn's disease is a chronic inflammatory disorder…
- Tyrosinemia type I A metabolic genetic disease characterized by abnormally high levels of amino acid tyrosine in blood…
- Process In anatomy, a process is a projection from a structure. The process of the mandible is the part of the lower…
- Reabsorption Absorbing again. For example, the kidney selectively reabsorbs substances such as glucose, proteins, and…
- Collagen injection The practice of injecting collagen into a part of the face or body to make it larger, most often performed on…
- Antigen, prostate specific See: PSA
- Vulva The female external genital organs including the labia majora, labia minora, clitoris, tiny glands called…
- Nervous system, human The sum total of the tissues that record and distribute information within a person, and does so by…
- Thyroxine Abbreviated T4. A hormone made by the thyroid gland that has four iodine molecules attached to its molecular…
- Esophagectomy An operation to remove a portion of the esophagus