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).
Sunscreen
A substance that blocks the effect of the sun's harmful rays. Using lotions that contain sunscreens can reduce the risk of skin cancer, including melanoma
Read the definitionRandom terms
Show more- Leukemoid reaction A benign condition in which the high number of white blood cells found in a blood test resembles the numbers…
- Gertie F. Marx See: Marx, Gertie F.
- Noisome Offensive to the senses and especially disgusting, offensive, or harmful to the sense of smell. For example…
- Acetylcholine A key chemical in neurons (nerve cells) that acts as a neurotransmitter and carries information across the…
- Immunity, active Immunity, active: The production of antibodies against a specific agent by the immune system. Active immunity…
- Iodine, radioactive An isotope of the chemical element iodine that is radioactive. Radioactive iodine is used in diagnostic tests…
- SARS Severe acute respiratory syndrome. A severe form of pneumonia which appeared in outbreaks in 2003. See…
- Trimester The nine months of pregnancy is traditionally divided into three trimesters: distinct periods of roughly…
- Diet, Mediterranean See: Mediterranean diet
- Elastase 1 Pancreatic elastase, a member of the pancreatic family of serine proteases. Although termed elastase, this…
- Bone, occipital See: Occipital bone
- Checkpoint The side of the face forming the side wall of the mouth. The cheek bone is part of the temporal bone of the…