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).
Cells, germ
The eggs and sperm are the germ cells: the reproductive cells. Each mature germ cell is haploid in that it has a single set of 23 chromosomes containing half the usual amount of DNA and half the usual number of genes. Except for the eggs…
Read the definitionRandom terms
Show more- MRC 1. In the US, the Medical Reserve Corps. 2. In the UK and some Commonwealth countries, the Medical Research…
- Infection, pork tapeworm Known medically as cysticercosis, an infection caused by Taenia solium (the pork tapeworm). Infection occurs…
- Varco See: Varco, Richard L.
- Renal transplant Replacement of a diseased, damaged, or missing kidney with a donor kidney. Also called a kidney transplant…
- Hallucination A profound distortion in a person's perception of reality, typically accompanied by a powerful sense of…
- Quater in die (on prescription) Seen on a prescription, qid (or q.i.d.) means 4 times a day (from the Latin quater in die). The abbreviation…
- Diaphragmatic hernia Hernia: Passage of a loop of bowel through the diaphragm muscle. This type of hernia occurs as the bowel from…
- Myxedema, infantile Hypothyroidism (subnormal activity of the thyroid gland) that starts after birth and is manifest by features…
- Citrovorum factor See: Leucovorin
- Plasmacytoma Cancer of the plasma cells (white blood cells that produce antibodies) that may turn into multiple myeloma
- Macular pucker Scar tissue in the macula, the area of the retina responsible for sharp central vision. The scar can blur and…
- Influenza, avian Influenza, avian: Also called fowl plague, avian flu, and bird flu. A highly contagious viral disease with up…