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.
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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).
Meibomian gland
One of the little glands in the eyelids that make a lubricant called sebum which they discharge through their tiny openings in the edges of the lids. The meibomian glands can become inflamed, a condition termed meibomianitis or meibomitis…
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Show more- Smoking, passive The inhaling of environmental tobacco smoke (ETS) by someone who is not smoking. See: ETS
- Aristolochic acid A chemical found in nature in the plant Aristolochia fangchi. Aristolochic acid is contained in a number of…
- Fear of blood An abnormal and persistent fear of blood. Sufferers of this very common phobia dread the sight of their own…
- Labrum In medicine, a ring of fibrocartilage (fibrous cartilage) around the edge of the articular (joint) surface of…
- Child urine infection See: Urinary tract infection in children
- Cell, helper A type of T cell that participates in the immune response by recognizing foreign antigens and secreting…
- Herniated disc Herniated disc: Rupturing of the tissue that separates the vertebral bones of the spinal column. The center…
- Radiotherapy, stereotactic Radiation therapy in which a number of precisely aimed beams of ionizing radiation coming from different…
- Yellow enzymes A group of respiratory enzymes that catalyze reactions in the body permitting cells to respire, to breath…
- Restitution In cytogenetics, the spontaneous rejoining of broken chromosomes to reconstitute the original chromosome…
- Parumbilical Near the umbilicus (the 'belly button'). The parumbilical veins are small veins in the front wall of the…
- Chronic granulocytic leukemia See: Chronic myelogenous leukemia