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).
Amyotrophic lateral sclerosis (ALS)
Amyotrophic lateral sclerosis (ALS): A classic motor neuron disease. Motor neuron diseases are progressive chronic diseases of the nerves that come from the spinal cord responsible for supplying electrical stimulation to the muscles. This…
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Show more- Exacerbation A worsening. In medicine, exacerbation may refer to an increase in the severity of a disease or its signs and…
- Partial hysterectomy Hysterectomy: In a partial hysterectomy, the uterus is surgically removed but the cervix is left in place…
- Alpha-ethltryptamine An illicit hallucinogenic drug related to tryptamine. Street names for alpha-ethyltryptamine include…
- Sharp Medical slang for a needle or similar pointed object
- Clay-shoveler's fracture An uncommon breakage of the spine of the vertebrae from the lower neck or upper back as a result of stress…
- Osteogenesis imperfecta congenita See: Osteogenesis imperfecta type II.
- Pathogen inactivation A process designed to eliminate most pathogens -- viruses, bacteria and fungi -- from water, air or donated…
- Vitamin B -- nicotinic acid Deficiency of nicotinic acid (also known as niacin), one of the B-complex vitamins, causes pellagra. Pellagra…
- Medulla, adrenal The inner portion of adrenal gland. (The outer portion is the adrenal cortex). The adrenal medulla makes…
- Birth control ODYvAlign=top bgColor=#cccccc colSpan=2> vAlign=top width='100%' bgColor=#ffffff>Our Birth control Main…
- Knock-knees An abnormal curve of the legs that causes the knees to touch or nearly touch while the feet are apart. The…
- Fibulin 5 A protein that belongs to a family of extracellular proteins expressed in the basement membranes of blood…