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.
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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).
Macules
Small circumscribed changes in the color of skin that are neither raised (elevated) nor depressed. Macules are never large. They are basically little spots or blemishes in the skin. They are entirely flat and can only be appreciated by…
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Show more- Xerophthalmia Dry eyes. Xerophthalmia can be associated with systemic diseases such as Sjogren' s syndrome, systemic lupus…
- Apraxia The inability to execute a voluntary motor movement despite being able to demonstrate normal muscle function…
- Procollagen A precursor (forerunner) of collagen, the protein that adds strength and support to many body tissues
- BMD (bone mineral density) Abbreviation for bone mineral density and, the synonymous term, bone mass density. See: Bone mass density.
- Zygote intrafallopian transfer (ZIFT) A technique in which a woman's egg is fertilized outside the body, then implanted in one of her fallopian…
- Branchial cleft cyst Also called a branchial cyst, this is a cavity that is a remnant from embryologic development present at…
- Anemia, addisonian Anemia, addisonian: A blood disorder caused by a lack of vitamin B12. Patients who have this disorder do not…
- Interleukin-3 A protein that stimulates the immune system to develop mast cells and bone-marrow cells. Abbreviated IL-3
- Hormone, parathormone Hormone made by the parathyroid gland (behind the thyroid gland in the neck). Parathormone (pronounced…
- Rhythm, sinus The normal regular rhythm of the heart set by the natural pacemaker of the heart called the sinoatrial (or…
- Reflex, let down The let down reflex of the mother is an involuntary reflex during breastfeeding which causes the milk to flow…
- Illness, chronic An illness that has persisted for a long period of time. It is a continuing disease process