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).
Histology
The study of the form of structures seen under the microscope. Also called microscopic anatomy, as opposed to gross anatomy which involves structures that can be observed with the naked eye. Traditionally, both gross anatomy and histology…
Read the definitionRandom terms
Show more- Selective mutism An inability to speak in certain situations. See also apraxia, autism, mutism.
- Enteropathy, protein-losing See: Protein-losing enteropathy
- Engagement This term in obstetrics refers to the sensation that a pregnant woman feels when the baby drops. This is the…
- Lymphoblastic leukemia, acute (ALL) A form of leukemia that has a sudden onset and is characterized by the presence in the blood and bone marrow…
- Fear of joy An abnormal, excessive, and persistent fear of experiencing joy or pleasure. Sufferers with this most…
- Nares The nostrils or nasal passages. Nares is the Latin plural of naris, meaning nostril. Nares shares the same…
- Tongue base See: Base of tongue
- Syndrome, renal, with hemorrhagic fever A number of diseases, also known as hemorrhagic fever, characterized by an abrupt onset of high fever and…
- Sebaceous cyst A sebaceous cyst is a rounded swollen area of the skin formed by an abnormal sac of retained excretion…
- Orthomolecular medicine 1. A term coined by the chemist Linus Pauling who defined it as 'the preservation of good health and the…
- Rad Radiation absorbed dose, a measure for a dose of ionizing radiation
- Atrial flutter Well-organized but overly rapid contractions of the atrium of the heart (usually at a rate of 250-350…