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).
NIA (National Institute on Aging)
One of the US National Institutes of Health (NIH). The mission of the National Institute on Aging is to 'lead a national program of research on the biomedical, social, and behavioral aspects of the aging process; the prevention of…
Read the definitionRandom terms
Show more- Takayasu arteritis Inflammation of aorta and its branches. See: Takayasu disease
- Tremor Tremor: Any abnormal repetitive shaking movement of the body. Tremors have many causes and can be inherited…
- Estrogen-associated blood clots >esterified estrogens >esterified estrogens and methyltestosterone >estradiol >estrogens (conjugated) and…
- Pericardial sac A conical sac of fibrous tissue which surrounds the heart and the roots of the great blood vessels. Also…
- Three day fever See: Sandfly fever
- Tapeworm A worm that is flattened like a tape measure and functions as an intestinal parasite, unable to live freely…
- P in biochemistry The abbreviation for protein. For example, p53 is a protein (53 kilodaltons in size).
- Dissection, axillary Surgery in which the axilla (the armpit) is opened -- to 'dissect' means to 'cut apart' -- in order to…
- AMI Acute myocardial infarction. A heart attack. The term 'myocardial infarction' focuses on the heart muscle…
- Tumor necrosis factor A member of a superfamily of proteins, each with 157 amino acids, which induce necrosis (death) of tumor…
- Intracytoplasmic sperm injection (ICSI) A test-tube fertilization procedure in which a sperm is injected directly into an egg to achieve…
- Tendon, Achilles See: Achilles tendon