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).
Involuntary
Done other than in accordance with the conscious will of the individual. The opposite of voluntary. The terms 'voluntary' and 'involuntary' apply to the human nervous system and its control over muscles. The nervous system is divided into…
Read the definitionRandom terms
Show more- History, family The family structure and relationships within the family, including information about diseases in family…
- Lifetime risk The risk of developing a disease during ones lifetime or dying of the disease. The estimated lifetime risk of…
- Interventional radiology (IR) Rventional radiologists employ image guidance methods to gain access to the deep interstices of most organs…
- Summer cold A popular term for hay fever. Although the symptoms of a 'summer cold' may be similar to those of a real…
- Generic drug >The chemical name of a drug. >A term referring to the chemical makeup of a drug rather than to the…
- Rheumatic fever An illness that occurs following a streptococcus infection (such as a 'strep throat') or scarlet fever and…
- ADA (American Dental Association) The mission statement of the ADA reads as follows: 'The ADA is the professional association of dentists…
- Human cloning Human cloning for the purposes of creating a human being. Also called human reproductive cloning. The…
- United States Public Health Service The agency responsible for the public health of the American people. The Public Health Service (PHS)…
- Hyperactivity A higher than normal level of activity. An organ can be described as hyperactive if it is more active than…
- Albright syndrome Tough white fibrous tissue. The tunica albuginea of the testis, for example, is the layer of dense whitish…
- Meningitis, Kernig sign of This clinical hallmark of meningitis, inflammation of the meninges, the membranes covering the brain and…