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.
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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).
Zeitgeber
An environmental agent or event that provides the cue for setting or resetting a biological clock. To be synchronized with our environment, we need the input of Zeitgebers. The most important Zeitgeber in nature is light. Social factors…
Read the definitionRandom terms
Show more- Gait, steppage See Steppage gait
- Superjacent Lying just above or upon. Overlying. The opposite of superjacent is subjacent. Other related terms include…
- Acanthamoeba keratitis Infection of the cornea by acanthamoeba, a microscopic water-borne ameba. The disease tends to occur in…
- Strep Very commonly used shortened form of Streptococcus, a very common and important group of bacteria. See…
- Recurrent aural vertigo A condition, also known as Meniere's disease, with recurrent vertigo accompanied by ringing in the ears…
- Cysts Cysts: Cysts are abnormal, closed sac-like structures within a tissue that contain a liquid, gaseous, or…
- Cyclin One of a group of proteins that regulate the cell cycle. The cyclins bind to and activate cyclin-dependent…
- Homogentisate 1,2-dioxygenase The enzyme encoded in the HGD gene. Mutation of HGD causes the genetic disease alkaptonuria. Homogentisate…
- X (in genetics) Although the letter X can be used as a symbol in various ways (such as with X-rays, the X-axis of a graph…
- Coarctation of the aorta A congenital constriction of the aorta, impeding the flow of blood below the level of the constriction and…
- Occult stool blood test A test to check for hidden blood in the feces, the stool
- Lymphoma, lymphoblastic A rapidly moving, aggressive form of lymphoma most often seen in children or young adults. Treatment may be…