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).
Nondisjunction
Failure of paired chromosomes to disjoin (separate) during cell division so that both chromosomes go to one daughter cell and none to the other. Nondisjunction causes errors in chromosome number such as trisomy 21 (Down's syndrome) and…
Read the definitionRandom terms
Show more- Dyspraxia Impaired or painful function of any organ of the body
- Osteotomy Taking out part or all of a bone, or cutting into or through bone.
- Adenosine A nucleoside containing adenine as its base. Adenosine acts to dilate the coronary arteries and is employed…
- Endometrial hyperplasia A condition characterized by overgrowth of the lining of the uterus. Hyperplasia means overgrowth. The…
- Melanoma, conjunctival An uncommon eye cancer that arises in the conjunctiva, the clear membrane that covers the outer surface of…
- ALOX5AP Arachidonate 5-lipoxygenase-activating protein. See: FLAP
- Electron beam computerized tomography (EBCT) A new (and controversial) noninvasive test for the detection of coronary artery disease (CAD). EBCT, or…
- Nursing home A residential facility for persons with chronic illness or disability, particularly older people who have…
- Rat, rice See: Rice rat
- Female external genitalia The external genital organs of the female, comprising the pudendum, clitoris, and female urethra
- Gene array analysis A way of analyzing the differential expression of thousands of species of mRNA (messenger RNA) at the same…
- Clostridium botulinum A group of rod-shaped bacteria commonly found in the soil that grow best under low oxygen conditions. The…