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).
Triiodothyronine
A hormone made by the thyroid gland. It has three iodine molecules attached to its molecular structure. It is the most powerful thyroid hormone, and affects almost every process in the body, including body temperature, growth, and heart…
Read the definitionRandom terms
Show more- Bronchopulmonary Pertaining to both the air passages (bronchi) leading to the lungs and the lungs (pulmonary) themselves
- Deafness and Communication Disorders, Institute Institute on (NIDCD): One of the US National Institutes of Health. The mission of the National Institute on…
- Scorbutic Pertaining to scurvy (scorbutus) or affected by it
- Ampullary carcinoma Cancer of a structure called the ampulla of Vater, a small muscle located at the junction where the common…
- Paraneoplastic syndrome The collective signs and symptoms caused by a substance emanating from a tumor or in reaction to a tumor…
- Spectral karyotype (SKY) Karyotype(SKY): A visualization of all of the chromosomes in the genome all together with each chromosome…
- Ameba Also amoeba. A single-celled (protozoan) organism that constantly changes shape. The word 'ameba' is from the…
- P.r.n. Abbreviation meaning 'when necessary' (from the Latin 'pro re nata', for an occasion that has arisen, as…
- Orthotic A support, brace, or splint used to support, align, prevent, or correct the function of movable parts of the…
- Verruca A wart by another name, a local growth of the outer layer of the skin (the epidermis) caused by a virus. The…
- IMRT Intensity modulated radiation therapy
- LCHAD deficiency Acute fatty liver of pregnancy (AFLP) has been found to be associated in some cases with an abnormality of…