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).
Belly button
The navel or umbilicus. The one-time site of attachment of the umbilical cord. The term 'belly button' was coined around 1877
Read the definitionRandom terms
Show more- Microduplication The gain of a tiny piece of a chromosome, a piece so small its presence is not apparent on ordinary…
- Cone A type of specialized light-sensitive cell (photoreceptor) in the retina of the eye that provide sharp…
- Toxic multinodular goiter Condition in which the thyroid gland contains multiple lumps (nodules) that are overactive, produce excess…
- Three-day fever See: Sandfly fever
- Abducent nerve A small motor nerve that has one task: to supply a muscle called the lateral rectus muscle that moves the eye…
- Lycanthropy The delusion that one has become a wolf or the werewolf transformation. Werewolf myths were associated with…
- Cell, fat A cell containing fat. Also called an adipocyte. A fat cell, or adipocyte, is a connective tissue cell that…
- FBLN5 The gene encoding the protein known as fibulin 5. See: Fibulin 5
- Guillotine A machine used during (and after) the French Revolution for beheading people condemned to death, by means of…
- Skittles Street name for dextromethorphan (DXM)
- Darier disease A genetic skin disease characterized by slowly progressive hardening of the skin (keratoses) around the hair…
- Essential fatty acid An unsaturated fatty acid that is essential to human health, but cannot be manufactured in the body. There…