MedicalVocabulary.org
Medical vocabulary with 16,436 clear, complete and reliable definitions.
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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).
Anovular menstruation
Menstruation without ovulation. The egg stays within the ovary and usually disintegrates but sometimes it is fertilized, resulting in a life-threatening pregnancy within the ovary
Read the definitionRandom terms
Show more- Hansen's bacillus See: Hansen bacillus
- Typhoid fever Typhoid fever: An acute illness with fever caused by infection with the Salmonella typhi bacteria contracted…
- United States Pharmacopeia Abbreviated USP. A publication, established in 1820, that contains legally recognized standards of identity…
- Lactose The sugar found in milk. The body uses the enzyme lactase to break down lactose into galactose and glucose
- Floppy baby syndrome A general medical reference to an abnormal condition of newborns and infants manifested by inadequate tone of…
- Single gene disease Any genetic disorder caused by a change affecting only one gene. There are thousands of single-gene diseases…
- Kok disease A genetic disorder also known as hyperexplexia in which babies have an exaggerated startle reflex (reaction)…
- Acute-phase reactant See: Acute-phase protein
- Familial Parkinson disease type 4 A familial form of Parkinson disease inherited in an autosomal dominant manner due to a gene on chromosome…
- Alembic A type of still, an apparatus used in the process of distillation. Alembics were employed in chemistry and…
- HIV Acronym for the Human Immunodeficiency Virus, the cause of AIDS (acquired immunodeficiency syndrome). HIV has…
- Disease, Hodgkin (Hodgkin lymphoma) A disease of the lymph nodes named after the English physician Thomas Hodgkin (1798-1866) who discovered it…