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).
Involution
1. Literally, a turning inward or rolling inward.2. A decrease in size, usually after an increase. The uterus involutes after pregnancy.3. A retrograde change. After treatment, a tumor may involute. 4. With advancing age, there may be…
Read the definitionRandom terms
Show more- Premenstrual Just before the start of menstruation. As in a premenstrual headache
- Hemoglobin E Normal embryonic hemoglobin, the main type of hemoglobin found in the human embryo. The E stands for…
- Chromosome 4p- syndrome The 4p- syndrome or Wolf-Hirschhorn syndrome, is a chromosome disorder due to partial deletion of the short…
- Recalcitrant Stubborn. For example, a recalcitrant case of pneumonia stubbornly resists treatment
- Macroglossia Enlarged tongue. Macroglossia is sometimes said to be associated with Down syndrome, but in that disorder the…
- Dysplasia, thanatophoric A form of short-limbed (micromelic) dwarfism that usually causes death within the first few hours after…
- Substance 1. Material with particular features, as a pressor substance.2. The material that makes up an organ or…
- Ultrasound, Doppler See: Doppler ultrasound
- Pulse The rhythmic contraction and expansion of an artery due to the surge of blood from the beat of the heart. The…
- Syndrome, chromosome 4 short-arm deletion This syndrome, called the Wolf-Hirschhorn syndrome, is a chromosome disorder due to partial deletion of the…
- Human Development, . . . (NICHD) Of Child Health and (NICHD): One of the US National Institutes of Health, NICHD is in a sense the NIH for…
- Neurological Disorders and Stroke, Nat'l Institut Of (NINDS): One of the National Institutes of Health in the U.S., the NINDS's mission is to 'support and…