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.
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Show more- Tunica albuginea The whitish membrane within the penis that surrounds the spongy chambers (corpora cavernosa) in the penis and…
- Viral infection Infection caused by the presence of a virus in the body. Depending on the virus and the person's state of…
- Drug, antiprotozoal Something that destroys protozoa or inhibits their growth and ability to reproduce. A few of the protozoa of…
- Off-label use In the United States, the regulations of the Food and Drug Administration (FDA) permit physicians to…
- Hysteroscopy A procedure to see inside the uterus (the womb) using a viewing tube that is inserted into the vagina up…
- Prenatal development The process of growth and development within the womb, in which a single-cell zygote (the cell formed by the…
- Tandem MS Abbreviation for tandem mass spectrometry. See: Tandem mass spectrometry
- Bone, cuboid The cuboid bone is the outer bone in the instep of the foot. It is called the cuboid bone because it is…
- Alpha-1 antitrypsin deficiency Alpha-1 antitrypsin deficiency: An inherited disorder that results in low or no production of a protein…
- Serine An amino acid, one of the 20 building blocks of protein. A dietary nonessential amino acid, serine is present…
- Vincent stomatitis This is trench mouth, a progressive painful infection with ulceration, swelling and sloughing off of dead…
- Masticate To chew, grind, or pulverize food (or something else) until it turns to pulp. From the Latin masticare, from…