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).
Genomic imprinting
The phenomenon of parent-of-origin gene expression. The expression of a gene depends upon the parent who passed on the gene. For instance, two different disorders - Prader-Willi syndrome and Angelman syndrome -- are due to deletion of the…
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Show more- Magnesium A mineral involved in many processes in the body including nerve signaling, the building of healthy bones…
- Laparoscopic assisted vaginal hysterectomy A procedure using laparoscopic techniques to remove the uterus (womb) and/or tubes and ovaries through the…
- Expression, gene See: Gene expression
- Basal metabolic rate A measure of the rate of metabolism. For example, someone with an overly active thyroid will have an elevated…
- Tunica albuginea The whitish membrane within the penis that surrounds the spongy chambers (corpora cavernosa) in the penis and…
- Plasma osmolarity The osmolarity of blood plasma, which is a measure of the hydration status. The plasma osmolarity is…
- Hypnic headache A relatively rare form of headache disorder in which the patient is awakened from sleep nightly, usually…
- Human T-lymphotropic virus type I (HTLV-I) A virus often referred to simply as the human T-lymphotropic virus (HTLV). HTLV-II stands for human…
- Hereditary progressive arthro-ophthalmopathy See: Stickler syndrome
- Fibrillation, atrial An abnormal irregular heart rhythm whereby electrical signals are generated chaotically throughout the upper…
- Differential diagnosis The process of weighing the probability of one disease versus that of other diseases possibly accounting for…
- Dilatate To enlarge or expand. For example, to dilatate the eye is to enlarge the pupil temporarily with special…