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.
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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).
Reservoir, Ommaya
A device implanted under the scalp that is used to deliver anticancer drugs to the cerebrospinal fluid, the fluid surrounding the brain and spinal cord. The device is named for the U.S. neurosurgeon Ayub Ommaya
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Show more- Meconium ileus Obstruction of the intestine (ileus) due to overly thick meconium, the dark sticky stuff that is normally…
- Whiplash injury Hyperextension (over-extension) injury to the neck, often the result of being struck from behind, as by a…
- Disease, subclinical An illness that stays below the surface of clinical detection. A subclinical disease has no recognizable…
- Pseudotumor cerebri Pseudotumor cerebri: Increased pressure within the brain in the absence of a tumor. Symptoms may include…
- ALS4 See: Amyotrophic lateral sclerosis 4
- Amnesic aphasia See Anomia.
- Anhedonia Loss of the capacity to experience pleasure. The inability to gain pleasure from normally pleasurable…
- Secondary amyloidosis Amyloidosis: One of a group of diseases (called amyloidosis) in which protein deposits (amyloid) accumulate…
- Endorectal MRI An MRI (magnetic resonance imaging) done from inside the rectum. To do such as MRI, a surface coil within an…
- Biological therapy Biological therapy: Treatment to stimulate or restore the ability of the immune (defense) system to fight…
- Rickettsial diseases The infectious diseases caused by the rickettsiae fall into 4 groups:(1) typhus: epidemic typhus…
- Cancer, breast, susceptibility genes Cancer, breast, susceptibility genes: Inherited factors that predispose to breast cancer. Put otherwise…