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).
Crossing over
The exchange of genetic material between two paired chromosomes. Crossing over is a way to recombine the genetic material so that each person (except for identical twins) is genetically unique
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Show more- Rickettsioses of the eastern hemisphere, tick-born There are 3 known diseases caused by infection with rickettsial agents. They are North Asian tick-borne…
- Testes The male sex glands. They are located behind the penis in a pouch of skin called the scrotum. The testes…
- Villus 1. A tiny finger-like or hair-like projection. 2. A small vascular protrusion.Villus is the Latin word for…
- Mendel, Gregor The great Moravian/Bohemian biologist (1822-84) who set forth the basic laws that constitute the foundation…
- CNS (central nervous system) That part of the nervous system that consists of the brain and spinal cord. The central nervous system (CNS)…
- Zinc deficiency Lack of zinc in the body. According to the National Academy of Sciences, the Recommended Dietary Allowances…
- Gesell Developmental Schedules A measure of child development devised by the American child psychologist and pediatrician Arnold Gesell…
- Constitutional thrombopathy See: Von Willebrand disease
- Cushing, Harvey Renowned American neurosurgeon (1869-1939) whose name is now associated with Cushing syndrome (Cushing…
- Exemestane An oral antiestrogen. Exemestane inhibits the enzyme aromatase in the adrenal glands that produces the…
- Wolf-Hirschhorn syndrome Abbreviated WHS. A chromosome disorder due to partial deletion of the short (p) arm of chromosome 4. It is…
- Disease, His Named for the Swiss physician Wilhelm His, Jr. (who also described the bundle of His in the heart), this is a…