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).
Morning-after pill
A form of contraception used after rather than before sexual intercourse. Morning-after pills interfere with pregnancy by blocking the implantation of the fertilized egg in the uterus (womb). The pills contain the same drugs as regular…
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Show more- Sarcoma, Ewing Sarcoma, Ewing: A type of bone tumor that occurs in children and adolescents, most often in the large bones…
- Rod A type of specialized light-sensitive cell (photoreceptor) in the retina of the eye that provides side vision…
- Sialidosis A form of mucolipidosis characterized by deficiency of acid alpha-N-acetyl- neuraminidase (sialidase). See…
- Encopresis Encopresis: Inability to control the elimination of stool (fecal incontinence). Encopresis can have a variety…
- Lipids Another word for 'fats.' (Please see the various meanings of Fat.) Lipids can be more formally defined as…
- Gene, regulatory A gene that regulates the expression of other genes. A regulatory gene is a nosy gene whose prime…
- Oxygenate To add oxygen to any chemical or physical system, including the human body. Oxygenate can also refer to the…
- Migraine, abdominal An attack of abdominal pain that may be preceded by a migraine aura and accompanied nausea, vomiting, and…
- Intervertebral foramen An opening between vertebrae through which nerves leave the spine and extend to other parts of the body. Also…
- CSF (colony-stimulating factor) A laboratory-made agent similar to a substance in the body that stimulates the production of blood cells. The…
- B.i.d. (on prescription) Seen on a prescription, b.i.d. means twice (two times) a day. It is an abbreviation for 'bis in die' which in…
- Dwarfism, achondroplastic A genetic disorder of bone growth, achondroplasia is the most common cause of short stature with…