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).
Thyroid hormone
A chemical substance made by the thyroid gland for export into the bloodstream. The thyroid gland needs iodine to make thyroid hormones. The two most important thyroid hormones are thyroxine (T4) and triiodothyronine (T3). The thyroid…
Read the definitionRandom terms
Show more- Intrahepatic Within the liver.
- Isoleucine An amino acid, one of the 20 building blocks of protein. A dietary essential amino acid, isoleucine is needed…
- Parathyroids, hypoplasia of the thymus and See: DiGeorge syndrome
- Tag, skin A small tag of skin that may have a stalk (a peduncle). Skin tags may appear on the skin almost anywhere…
- Cancer detection Dding=0 width='100%' border=0> ODYvAlign=top bgColor=#cccccc colSpan=2> vAlign=top width='100%'…
- Pseudodementia A severe form of depression resulting from a progressive brain disorder in which cognitive changes mimic…
- Mirror, mouth See: Mouth mirror
- Streptococcus faecalis Now called Enterococcus faecalis. See Enterococcus
- Tomography, computerized axial Pictures of structures within the body created by a computer that takes the data from multiple X-ray images…
- Sequencing Learning the order of nucleotides (base sequences) in a DNA or RNA molecule or the order of amino acids in a…
- Shunt, Blalock-Taussig A pioneering heart operation named after the American surgeon Alfred Blalock (1899-1964) and the pediatric…
- Nasal Having to do with the nose. Nasal drops are intended for the nose, not (for example) the eyes. The word…