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).
Dynein
A family of microtubule motor proteins that derive energy from ATP (adenosine triphosphatase) activity. The dyneins also form arms on the outer tubules of cilia and flagella. The dynein motor, a cellular complex believed to be composed of…
Read the definitionRandom terms
Show more- Resectable Able to be removed (resected) by surgery
- Fear of loneliness An abnormal and persistent fear of loneliness, of being alone. Sufferers of this fear experience undue…
- Infant, small for gestational age Small for gestational age (SGA) infants weigh 2500 g or less at birth and are considered to have intrauterine…
- Effective dose The dose of a drug that will achieve the desired effect
- Vulva The female external genital organs including the labia majora, labia minora, clitoris, tiny glands called…
- Trachelectomy Surgical removal of the cervix, the lower portion of the uterus that protrudes into the vagina. Trachelectomy…
- Hereditary mutation Mutation: A heritable change in the DNA of a gene or chromosome in a cell destined to become an egg or a…
- Implant 1. To embed; to set in firmly. In embryology, the fertilized egg implants in the uterine lining 6 or 7 days…
- Hahnemann, Samuel A sac from which a hair grows and into which the sebaceous (oil) glands open. The follicle is lined by cells…
- Pseudomelanosis coli Anosis coli): A benign, reversible condition usually, but not always, associated with long-term use of…
- Schedules, Gesell Developmental A measure of child development devised by the American child psychologist and pediatrician Arnold Gesell…
- Tube, NG An NG (nasogastric) tube is one that is passed through the nose (via the nasopharynx and esophagus) down into…