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).
Menstruation
Menstruation: The periodic blood that flows as a discharge from the uterus. Also called menorrhea, the time during which menstruation occurs is referred to as menses. The menses occurs at approximately 4 week intervals to compose the…
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Show more- Ginseng An herb that has been used to stimulate the adrenal gland and thereby increase energy. It also may have some…
- Diabetes, labile A type of diabetes when a person's blood glucose (sugar) level often swings quickly from high to low and from…
- Menstruation, retrograde The flow of menstrual blood from the uterus into the fallopian tubes, and potentially into the abdomen. This…
- Alternative splicing A mechanism by which different forms of mature mRNAs (messengers RNAs) are generated from the same gene…
- Lobe Part of an organ that appears to be separate in some way from the rest. A lobe may be demarcated from the…
- Sexually transmitted infection An infection that can be transferred from one person to another through sexual contact. In this context…
- Fever, remittent A type of fever that gradually decreases in intensity over time
- Urine pH A measure of the acidity or alkalinity of urine. The pH of any fluid is the measure of the hydrogen ion (H-)…
- Facial nerve paralysis Loss of voluntary movement of the muscles on one side of the face due to abnormal function of the facial…
- Exclamation point hair Exclamation point hair is a key diagnostic finding in a disorder called alopecia areata. Alopecia areata is…
- Toxin, anthrax The toxic substance secreted by the bacterium Bacillus anthracis, the causative agent of the disease anthrax…
- Centenarian Someone who is 100 or more years old. Someone 110 years old and over (no upper limit) may also be referred to…