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).
Joint, atloaxoid
: The joint between the atlas and axis bones. The atlas is the first cervical (neck) vertebra which is just under the head; it is named for Atlas, the Greek god who supported the world on his shoulders. The axis is the second cervical…
Read the definitionRandom terms
Show more- Meiotic drive Preferential selection during meiosis (germ cell production). In meiotic drive there is preferential…
- Tracheostomy Tracheostomy: A surgical operation to create an opening (stoma) into the windpipe (the trachea). The opening…
- Myomectomy Surgery to remove a fibroid from the uterus. A fibroid, or leiomyoma, is a benign tumor that arises from the…
- Isoform A protein that has the same function as another protein but which is encoded by a different gene and may have…
- Platelet count The calculated number of platelets in a volume of blood, usually expressed as platelets per cubic millimeter…
- Alternative medicine Alternative medicine: Healing arts not taught in traditional Western medical schools that promote options to…
- Hereford genome See: Bovine genome
- Peliosis hepatis A rare condition in which the liver contains multiple, randomly-distributed blood-filled spaces or cavities…
- Popcorn worker's lung A form of bronchiolitis obliterans, a severe obstructive lung disease, in workers who mix and package…
- Beta carotene A vitamin that acts as an antioxidant, protecting cells against oxidation damage. Beta carotene is converted…
- Polyuria The excessive passage of urine (at least 2.5 liters per day for an adult) resulting in profuse urination and…
- Tachycardia, paroxysmal atrial A fast heartbeat (tachycardia) because of rapid firing of the sinoatrial (sinus) node. The sinoatrial (or…