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).
Lightheadedness
A feeling you are 'going to faint.' Lightheadedness is medically distinct from dizziness, unsteadiness, and vertigo. See: Dizziness, Unsteadiness, and Vertigo
Read the definitionRandom terms
Show more- Leg pain with cramping An aching, crampy, tired, and sometimes burning pain in the legs that comes and goes -- it typically occurs…
- Genomic library A collection of clones made from a set of randomly generated overlapping DNA fragments representing the…
- Cyclooxygenase-1 inhibitor See: Cox-1 inhibitor
- Familial amyotrophic lateral sclerosis Amyotrophic lateral sclerosis (ALS) in which there a family history of the disease. Familial ALS constitutes…
- Ot- Prefix meaning ear, used before a vowel, as in otalgia and otitis. Before a consonant, ot- becomes oto-, as…
- Annexins The annexins are a family of proteins first described in 1990. All of the annexin proteins share the property…
- CEPT Cholesterol ester transfer protein
- Bogorad's syndrome Named after the Russian neuropathologist who described the syndrome of crocodile tears. See: Crocodile tears…
- Health, industrial A branch of public health concerned with the health and well-being of workers. Its aims are to eliminate…
- Foley catheter See: Catheter, Foley
- Positive-strand RNA virus Also known as a sense-strand RNA virus, a virus whose genetic information consists of a single strand of RNA…
- Julius Axelrod See: Axelrod, Julius