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).
Perinatal
Pertaining to the period immediately before and after birth. The perinatal period is defined in diverse ways. Depending on the definition, it starts at the 20th to 28th week of gestation and ends 1 to 4 weeks after birth. The word…
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Show more- Nephritis, acute Sudden inflammation of the kidney. Diagnosis is by finding blood or protein in the urine. There is often…
- Subcu Abbreviation for subcutaneous. Subcutaneous means under the skin. It implies just under the skin. With a…
- Tone deafness The inability to recognize musical tones or reproduce them. Also called amusia
- Syndrome, Zollinger-Ellison A rare disorder caused by a tumor called a gastrinoma, most often occurring in the pancreas. The tumor…
- Ophthalmoscopy Examination of the interior of the eye, including the lens, retina and optic nerve, by indirect or direct…
- Roentgen ray Term coined around 1890 that preceded X-ray and is now synonymous with it. Named for Wilhelm Roentgen, a…
- Enanthem A rash inside the body. An example: the spots in measles (Koplik's spots) inside the mouth that look like a…
- Muscle, ciliary One of the muscles that relax the zonules to enable the lens to change shape for focusing. The zonules are…
- Cancer, ovary Cancer of the egg sac of females: the ovary. The anatomic location of the ovaries: NTER>Most ovarian growths…
- Urachus A canal connecting the bladder of the fetus with the allantois, a structure that contributes to the formation…
- Melanoderma Increased skin pigmentation, darkening of the skin. This is directly due to an increased amount of melanin…
- Remission Disappearance of the signs and symptoms of cancer or other disease. When this happens, the disease is said to…