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.
- 100% free
- No registration
- No intrusive ads
- Privacy by design
- Mobile friendly
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).
Evolution, biologic
Biologic evolution was contrasted with cultural (social) evolution in 1968 by A.G. Motulsky who pointed out that biologic evolution is mediated by genes, shows a slow rate of change, employs random variation (mutations) and selection as…
Read the definitionRandom terms
Show more- Slap cheek See: Fifth disease
- Poly1 isomerase An enzyme also known as Pin1. See: Pin1
- BTE Behind-the-ear. See also: Behind-the-ear hearing aid
- ATN Acute tubular necrosis
- Frotteurism Frotteurism is a problem where the focus of the person's sexual urges is related to touching or rubbing his…
- Spermatocide Any agent that is destructive to spermatozoa (that is, kills sperm). Nonoxynol-9 is the most commonly…
- Migraine aura Sensory phenomena that may occur before a migraine. Visual auras may include flashing lights, geometric…
- Lightheadedness A feeling you are 'going to faint.' Lightheadedness is medically distinct from dizziness, unsteadiness, and…
- Cripple 1. A person who is lame or disabled. 2. To maim or disable a person. The word 'cripple' is a medically…
- Infection, Neisseria An infection acquired in a hospital. Specifically an infection that was not present or incubating prior to…
- Five-lipoxygenase-activating protein See: FLAP
- Anoscope An Anoscope is an instrument used for visualization of the anus and lowest portion of the rectum. An anoscope…