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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A (adenine)
In genetics, A stands for adenine, one member of the A-T (adenine-thymine) base pair in DNA. The other base pair in DNA is G-C (guanine-cytosine). Each base pair forms a 'rung of the DNA ladder.' A DNA nucleotide is made of a molecule of…
Read the definitionRandom terms
Show more- Sun protection factor (SPF) A number on a scale for rating sunscreens. SPF stands for Sun Protection Factor. SPF numbers on a package can…
- Lumen A luminous term referring to the channel within a tube such as a blood vessel or to the cavity within a…
- Warble A small hard nodule produced by the larva of a fly that has penetrated the skin. The warble can be…
- Membrane-associated neutral endopeptidase Pertaining to a membrane. As in acute membranous gingivitis, membranous nephropathy, and pseudomembranous…
- Primary care The 'medical home' for a patient, ideally providing continuity and integration of health care. All family…
- Gingivitis, fusospirochetal This is trench mouth, a progressive painful infection with ulceration, swelling and sloughing off of dead…
- Sedative A drug that calms a patient down, easing agitation and permitting sleep. Sedatives generally work by…
- Sigmoid volvulus See: Volvulus
- Cerebrovascular disease Disease of the blood vessels and, especially, the arteries that supply the brain. Cerebrovascular disease is…
- Recessive A condition that appears only in individuals who have received two copies of a mutant gene, one copy from…
- Ragged red fibers with CPEO See: Kearns-Sayre syndrome
- Syncope, coughing The temporary loss of consciousness upon coughing. Syncope is the temporary loss of consciousness or, in…