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).
Periphery
1. The outside or surface of a structure; the portion outside the central region. 2. The circumference of a circle or other geometric figure.
Read the definitionRandom terms
Show more- Acid phosphatase Acid phosphatase is an enzyme that works under acid conditions and is made in the liver, spleen, bone marrow…
- Arthralgia Pain in the joints. There are many possible causes of pain in a joint. The Greek 'algos' means 'pain.
- Abiological See: Abiotic
- Nursing home A residential facility for persons with chronic illness or disability, particularly older people who have…
- Lunula 1. The crescent-shaped area at the base of a fingernail or toenail. 2. Any small crescent- or moon-shaped…
- Venipuncture The puncture of a vein with a needle to withdraw blood. Also called phlebotomy or, more often, a blood draw
- Contractions, Braxton Hicks Irregular contractions of the womb (the uterus) occurring towards the middle of pregnancy in the first…
- Hepatomegaly An enlarged liver. 'Hepato-' comes from the Greek 'hepatikos' (of the liver) + 'megaly' from the Greek…
- Uterus The uterus (womb) is a hollow, pear-shaped organ located in a woman's lower abdomen between the bladder and…
- Hydrazine Hydrazine sulfate, an alternative medicine that has been claimed to be a treatment for cancer. It has been…
- Obstetrician A physician who delivers babies and is in the practice of obstetrics, the art and science of managing…
- Attention The ability to focus selectively on a selected stimulus, sustaining that focus and shifting it at will. The…