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).
Visual acuity
The clarity or clearness of the vision, a measure of how well a person sees. The ability to distinguish details and shapes of objects; also called central vision. The word 'acuity' comes from the Latin 'acuitas' = sharpness.
Read the definitionRandom terms
Show more- Shell shock The World War I name for what is known today as post-traumatic stress, this is a psychological disorder that…
- Oxygenation The addition of oxygen to any system, including the human body. Oxygenation may also refer to the process of…
- Enteroplasty Surgery on the intestine, especially to enlarge a constricted segment or lengthen a short bowel
- Gland, Cowper's See: Bulbourethral gland
- Debris flow injury Also known as mudslide injury. See: Landslide injury
- Cholesterol, High-density lipoprotein (HDL) cholesterol.
- STS Commonly used abbreviation for 'sequence tagged site.' A short (200 to 500 base pair) DNA sequence that…
- Oma Suffix meaning a swelling or tumor. Many words in medicine end in -oma. Some examples include adenoma…
- Peptidase An enzyme that can break down a peptide into its component amino acids
- Hearing instrument A synonym for a hearing aid that gained popularity to distinguish the device from AIDS. See: Hearing aid
- Growth hormone A hormone made in the pituitary gland that stimulates the release of another hormone called somatomedin by…
- American medical school, first See: First American medical school