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).
Dreams
Thoughts, visions, and other sensations that occupy the mind in sleep. Dreams occur during that part of sleep when there are rapid eye movements (REMs). We have 3 to 5 periods of REM sleep per night. They usually come at intervals of 1-2…
Read the definitionRandom terms
Show more- Jaw The bones below the mouth (the mandible) and the bone above the mouth just above the mouth (the maxilla). The…
- Cyt- Prefix used in place of cyto- before a vowel. See: Cyto-
- Test, ovarian cancer CA 125 A screening test for cervical cancer based on the examination under the microscope of cells collected from…
- Gland, exocrine See: Exocrine gland
- Newborn hearing screen Testing of the newborn baby's ability to hear. Newborn screening of hearing is done with automated auditory…
- Homotrisomy Trisomy of the same chromosome. The occurrence of two children in the same family with trisomy 21 is an…
- Disease, bipolar See: Bipolar disorder
- Dacryoadenitis Inflammation of a lacrimal gland (a gland that produces tears)
- Macro- (prefix) Prefix from the Greek 'makros' meaning large or long. Examples of terms involving macro- include macrobiotic…
- Myocarditis Myocarditis: Inflammation of the myocardium, the heart muscle. Myocarditis can be caused by a number of…
- Childbed fever Fever due to an infection usually of the placental site within the uterus. The fever is also called…
- Colon cancer family history A family history of colorectal cancer (CRC). First-degree relatives of people with CRC are themselves at a 2…