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.
- 100% free
- No registration
- No intrusive ads
- Privacy by design
- Mobile friendly
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).
Teratogenic drugs
A teratogen is an agent that can disturb the development of the embryo or fetus. Teratogens halt the pregnancy or produce a congenital malformation (a birth defect). Classes of teratogens include radiation, maternal infections, chemicals…
Read the definitionRandom terms
Show more- Oligodactyly Fewer than the normal number of fingers or toes. Oligo- is from the Greek 'oligos' (few or scanty) + -dactyly…
- Neck The part of the body joining the head to the shoulders. Also, any narrow or constricted part of a bone or…
- Blood count The calculated number of white or red blood cells (WBCs or RBCs) in a cubic millimeter of blood
- X-ray, lateral An X-ray picture taken from the side
- Percutaneous umbilical blood sampling (PUBS) In PUBS, a needle is inserted through the mother's abdominal wall and the uterine wall. Blood can be…
- Purpura, acute thrombocytopenic See: Schonlein-Henoch purpura.
- Cerebral Pertaining to the brain, the cerebrum or the intellect. The word 'cerebral' was borrowed directly from the…
- Axillary Pertaining to the cavity beneath the junction of the arm and the body, better known as the armpit. The word…
- Vaccination, DPT See: DPT immunization
- Lichtenberg figures A fern-leaf pattern of reddish, painless marks on the skin that are a result of a skin reaction to a…
- Pituitary adenoma A benign tumor of the pituitary, the master gland that controls other glands and influences numerous body…
- MPO deficiency Myeloperoxidase deficiency