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).
Vanishing twin
A twin detected in early pregnancy that is miscarried, frequently by resorption, without clinical signs or symptoms. The surviving twin continues to grow and develop. Of all twin pregnancies, 40% involve a vanishing twin and result in the…
Read the definitionRandom terms
Show more- Philadelphia chromosome (Ph) The chromosome abnormality that causes chronic myeloid leukemia (CML). Abbreviated as the Ph chromosome. The…
- Clinical 1. Having to do with the examination and treatment of patients. 2. Applicable to patients. A laboratory test…
- Reticulocyte count The number of reticulocytes (young red blood cells) circulating in blood, usually less than 1% of the total…
- Glioblastoma multiforme A type of tumor that forms from glial (supportive) tissue in the brain. It is highly malignant, grows very…
- Neurosteroid A brain steroid, a molecule structurally similar to cortisone, progesterone and the gonadal hormones…
- Skin graft, split-thickness A graft technique in which sheets of skin containing the epidermis and part of the dermis are used
- Cells, germ The eggs and sperm are the germ cells: the reproductive cells. Each mature germ cell is haploid in that it…
- St. Joseph Moscati See: Moscati, St. Joseph
- Paradoxical embolism Passage of a clot (thrombus) from a vein to an artery. When clots in veins break off (embolize) , they travel…
- Septic Infected, or denoting infection. For example, septic shock is shock caused by infection.
- VEGF Vascular endothelial growth factor, a substance made by cells that stimulates the formation of new blood…
- Intracerebral hematoma Bleeding within the brain. Diagnosis is usually by MRI or CAT scan. Treatment is by surgery