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).
Dilatation
The process of enlargement or expansion. For example, dilatation of the eye is the process by which the pupil is temporarily enlarged with special (mydriatic) eye drops. This allows the eye care specialist to better view the inside of the…
Read the definitionRandom terms
Show more- Inborn error of metabolism A heritable disorder of biochemistry. Examples of inborn errors of metabolism include albinism, cystinuria (a…
- Aphasia, nominal See Anomia
- Humidifier fever Fever: A form of sick building syndrome that usually develops on Monday or the first workday of the week. The…
- Color, eye See: Eye color. See also: EYCL1; EYCL2; EYCL3
- Red cell distribution width A measurement of the variability of red blood cell size. Higher numbers indicate greater variation in size…
- Herniation Abnormal protrusion of tissue through an opening. For example, a intervertebral disk (one situated between…
- Johnnies Plural of johnny
- Hysterectomy, subtotal The uterus is surgically removed but the cervix is left is left in place. Also called a partial hysterectomy
- Regional enteritis Crohn's disease, a chronic inflammatory disease of the intestine primarily in the small and large intestines…
- Familial Parkinson disease type 1 A familial form of Parkinson disease inherited in an autosomal dominant manner due to mutation in the…
- Swallower In the drug trade, an individual used as a drug courier. Also called a body packer. See: Body packer
- Tumor, Wilms See: Wilms tumor