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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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).
Sign, Kernig
A clinical hallmark of meningitis, inflammation of the meninges, the membranes covering the brain and spinal cord. The test for Kernig sign is done by having the person lie supine (flat on the back), flex the thigh so that it is at a right…
Read the definitionRandom terms
Show more- Collapsed lung Failure of full expansion of a once fully expanded lung. Medically called atelectasis. The word comes from…
- Bursitis, shoulder Inflammation of a bursa of a shoulder joint. A bursa is a fluid-filled sac that functions as a gliding…
- Social phobia Excessive fear of embarrassment in social situations that is extremely intrusive and can have debilitating…
- Perinatal Pertaining to the period immediately before and after birth. The perinatal period is defined in diverse ways…
- Melanocyte A pigment-producing cell in the skin, hair and eye that determines their color. The pigment that melanocytes…
- DNA cloning The use of DNA manipulation procedures to produce multiple copies of a single gene or segment of DNA
- Osteoblast A cell that makes bone. It does so by producing a matrix that then becomes mineralized. Bone mass is…
- Placebo response A positive medical response to taking a placebo, a sham medication as if it were an active medication. Up to…
- Output, cardiac The amount of blood pumped by the heart per minute. The amount of blood put out by the left ventricle of the…
- Typhoid Mary Someone who by force of circumstances serves as the source from which something undesirable spreads. Typhoid…
- Gamma linolenic acid See: Gamma-linolenic acid
- Separation anxiety Separation anxiety: A developmental stage during which a child experiences anxiety when separated from the…