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).
Cidal
Suffix indicating killing, as in bacteriocidal (capable of killing bacteria) and in suicidal (the killing of oneself)
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Show more- Radiopaque Anything that does not let X-rays or other types of radiation penetrate. Radiopaque objects block radiation…
- Saccular From the Latin 'sacculus' meaning a small pouch. As for example the alveolar saccules (little air pouches)…
- Vasovagal syncope The temporary loss of consciousness in a particular kind of situation (situational syncope) due to a…
- Demyelination A degenerative process that erodes away the myelin sheath that normally protects nerve fibers. Demyelination…
- Sinus, cavernous A large channel of venous blood creating a 'sinus' cavity bordered by the sphenoid bone and the temporal bone…
- Personality disorder, borderline A serious mental illness characterized by pervasive instability in moods, interpersonal relationships…
- Hippocampus An area buried deep in the forebrain that helps regulate emotion and memory. Functionally, the hippocampus is…
- Eosinophil A type of leukocyte (white blood cell) with coarse round granules of uniform size within its cytoplasm and…
- Scan, computerized axial tomography Pictures of structures within the body created by a computer that takes the data from multiple X-ray images…
- Naegleria fowleri A protozoa that is a pathogenic free-living ameba. Infection with Naegleria fowleri causes primary amebic…
- Nonagenarian Someone in his or her ninties, that is, between 90 and 99 years of age. See also: Age by decade
- Lymphatic Calf: The belly or fleshy hind part of the leg below the knee. The calf is made up mainly of the…