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).
Sebum
An oily secretion of the sebaceous gland which helps to preserve the flexibility of the hair
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Show more- Immunization, varicella A live attenuated (weakened) viral vaccine that is recommended for people traveling to or living in tropical…
- Hormone A chemical substance produced in the body that controls and regulates the activity of certain cells or…
- Dextroposition of the heart The heart is displaced to the right (from its usual location in the left chest). There is no anatomic…
- Siddha medicine An ancient system of medicine prevalent in South India. The word Siddha comes from the Tamil word for…
- Relapsing fever An acute infection with recurrent episodes of fever caused by spirochetes of the genus Borrelia which are…
- Dandruff A mild skin condition that produces white flakes that may be shed and fall from the hair. Dandruff is due to…
- Laser surgery, YAG The use of a YAG (yttrium-aluminum-garnet) laser to do surgery. One use for a YAG laser in surgery is to…
- Immunoglobulin A A major class of immunoglobulins found in serum and external body secretions such as saliva, tears, and sweat…
- Excise To cut out. A laser beam may be used to excise a tumor, much as a scalpel does. The terms excise and resect…
- Spleen An organ located in the upper left part of the abdomen near the stomach. The spleen produces lymphocytes; it…
- Prognosis 1. The expected course of a disease.2. The patient's chance of recovery. The prognosis predicts the outcome…
- Facies A direct borrowing from the Latin, facies means face.