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).
Dacryocyst
The lacrimal sac; tear sac. The dilated (widened) upper end of the nasolacrimal duct, the passageway that permits tears to drain into the nasal cavity
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Show more- NIGMS Stands for the National Institute of General Medical Sciences, one of the National Institutes of Health in…
- Bad air Any air considered noxious. Today, air filled with tobacco smoke might be considered 'bad air.' So might air…
- Sunscreen A substance that blocks the effect of the sun's harmful rays. Using lotions that contain sunscreens can…
- Costal margin The lower edge of the chest (thorax) formed by the bottom edge of the rib cage
- Women's hospital A hospital for the exclusive use of women. The first hospital called by that name was the Woman's Hospital of…
- Dyspnea Difficult or labored breathing; shortness of breath. Dyspnea is a sign of serious disease of the airway…
- Age-related deafness See: Presbycusis
- Cerebellar Pertaining to the cerebellum, the part of the brain in the back of the head between the cerebrum and the…
- Amblyopia, nocturnal Amblyopia refers to blindness so nocturnal amblyopia is, literally, night blindness. Listed in medical…
- Separation anxiety Separation anxiety: A developmental stage during which a child experiences anxiety when separated from the…
- Nannycam See: Nanny cam
- Necrotic Synonymous with dead. Necrotic tissue is dead tissue.