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).
Scler-
(Or sclero-) A confusing prefix that can refer exclusively to hardness (from the Greek 'skleros' meaning hard) but that can also refer to the sclera of the eye. Sclerodactyly, for example, is localized thickening and tightness of the skin…
Read the definitionRandom terms
Show more- CFS Chronic fatigue syndrome
- Cluster headache Headache: A distinctive syndrome of headaches, also known as migrainous neuralgia. There are two main…
- Myopia Myopia: Nearsightedness, the ability to see close objects more clearly than distant objects. Myopia can be…
- Insecticide-treated bednet A bednet that has been treated with insecticide to protect against mosquitos and malaria. 'Provision of…
- Ectodermosis erosiva pluriorificialis See: Stevens-Johnson syndrome.
- Azoospermia No sperm at all. The ejaculate is completely devoid of sperm. By contrast, in oligospermia (literally, few…
- Lead poisoning Lead poisoning: An environmental hazard capable of causing brain damage. In the US lead poisoning is formally…
- Hematuria Blood in the urine. Hematuria may or may not be accompanied by pain, but it is always abnormal and should be…
- Refractory Not yielding (at least not yielding readily) to treatment
- Carcinoma, basal cell Carcinoma, basal cell: The most common type of skin cancer, a disease in which the cancer cells resemble the…
- Rhinitis, vasomotor Inflammation of the nose (rhinitis) due to abnormal neuronal (nerve) control of the blood vessels in the…
- Vaginal contraceptive sponge A contraceptive device that is donut-shaped, made of plastic, contains a spermicide (nonoxynol-9) and is…