MedicalVocabulary.org
Medical vocabulary with 16,436 clear, complete and reliable definitions.
About MedicalVocabulary.org
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).
Scan, CAT
Pictures of structures within the body created by a computer that takes the data from multiple X-ray images and turns them in pictures. The CAT (computerized axial tomography) scan can reveal some soft-tissue and other structures that…
Read the definitionRandom terms
Show more- Endometriosis interna Also known as adenomyosis (pronounced ad-den-o-mi-o-sis), this is a common benign condition of the uterus in…
- Base in DNA A unit of the DNA. There are 4 bases: adenine (A), guanine (G), thymine (T), and cytosine (C). The sequence…
- Axillary hyperhidrosis Hyperhidrosis: Excessive sweating from the armpits. Excessive underarm perspiration tends to start in late…
- Dermatoglyphics The study of the patterns of ridges on the skin of the fingers, palms, toes, and soles. Dermatoglyphics are…
- Neuropathy Any and all disease or malfunction of the nerves
- Cranial nerve, third The third cranial nerve is the oculomotor nerve. The cranial nerves emerge from or enter the skull (the…
- Drug, antibiotic A drug used to treat bacterial infections. The original definition of an antibiotic was a substance produced…
- Vaccine, Salk Vaccine against poliomyelitis named for Dr. Jonas Salk who developed and introduced it in 1955. It was the…
- Patellar tendon reflex See: Knee jerk
- Thyroid hormones Chemical substances made by the thyroid gland, which is located in the front of the neck. This gland uses…
- Newborn intensive care unit An intensive care unit designed for premature and ill newborn babies. Abbreviated NICU. Also called a…
- Inferior vena cava A large vein that receives blood from the lower extremities, pelvis and abdomen and delivers it to the right…