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).
Contraceptive, combined oral
Commonly called 'the pill,' combined oral contraceptives are the most commonly used form of reversible birth control in the United States. This form of birth control suppresses ovulation (the monthly release of an egg from the ovaries) by…
Read the definitionRandom terms
Show more- Bypass, cardiopulmonary Bypass of the heart and lungs as, for example, in open heart surgery. Blood returning to the heart is…
- Signature 1) That part of the prescription that contains the doctor's directions to the patient. For example, the…
- Clinical Research Center (CRC) A key resource for clinical research. Also called a General Clinical Research Center (GCRC). One in a…
- LCL (lateral collateral ligament) of the knee The knee joint is surrounded by a joint capsule with ligaments strapping the inside and outside of the joint…
- Meningococcus A type of bacteria now formally known as Neisseria meningitidis, which is responsible for a number of…
- Nirenberg See: Nirenberg, Marshall W.
- Pseudotumor cerebri Pseudotumor cerebri: Increased pressure within the brain in the absence of a tumor. Symptoms may include…
- Tendonopathy, patellar See: Patellar tendonitis
- Catalyst A substance that speeds up a chemical reaction but is not consumed or altered in the process. Catalysts are…
- Sternum Anatomic name for the breast bone, the long flat bone in the upper middle of the front of the chest. The…
- Blepharophimosis Horizontal narrowing of the palpebral fissures (eye slits)
- Salter-Harris fracture A traumatic fracture around or through the growth plate (the epiphyseal plate) of a bone in a child