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).
Lysosome
An organelle (a little organ) in a cell containing enzymes that degrade macromolecules (large molecules) and other items (such as bacteria) taken up by a cell during the process of endocytosis. In endocytosis, macromolecules and particles…
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Show more- Family physician A physician who is educated and trained in family practice. 'Family physicians possess unique attitudes…
- Dengue hemorrhagic fever (DHF) Fever (DHF): A syndrome due to the dengue virus that tends to affect children under 10, causing abdominal…
- Myoclonic twitch A rapid, involuntary muscle contraction, particularly near the eye. Myoclonic tics resemble, and may be…
- Tobacco smoke, environmental Abbreviated ETS. See: ETS.
- Vein, central retinal The blood vessel that carries blood away from the retina of the eye. The counterpart to the central retinal…
- Alzheimer disease See: Alzheimer's disease
- Endoplasmic reticulum A structure within cells that is an extension of the nuclear membrane and in which proteins slated to become…
- Rate, fetal mortality The ratio of fetal deaths divided by the sum of the births (the live births + the fetal deaths) in that year…
- Spinocerebellar Pertaining to the spinal cord and the cerebellum, as in spinocerebellar ataxia (ataxia with cerebellar…
- Genetics, forensic See: Forensic genetics
- Thyroglobulin A protein found in the thyroid gland. Some thyroglobulin can be found in the blood, and this amount may be…
- Herniorrhaphy The surgical repair of a hernia. Herniorrhaphy may be done under local or general anesthesia using a…