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).
HIV infection, acute
The body's initial reaction to infection by the HIV virus. Acute HIV infection is a flu-like syndrome that occurs immediately after a person contracts HIV (the human immunodeficiency virus 1, the agent that causes AIDS). The syndrome is…
Read the definitionRandom terms
Show more- Episclera A thin membrane that covers the sclera (the white of the eye). 'Epi-' is a prefix from the Greek that means…
- Microarray A tool used to sift through and analyze the information contained within a genome. A microarray consists of…
- Test, eyedrop There are many types of eyedrops and many types of eyedrop tests. One of the most common eyedrop tests is…
- Antisense DNA DNA normally has two strands, i.e., the sense strand and the antisense strand. In double-stranded DNA, only…
- Approved drug A medication approved for marketing. In the US, the Food and Drug Administration (FDA) must approve a…
- Amnestic aphasia See Anomia
- Meibomian cyst A cyst of the little glands called Meibomian glands that are located in the eyelids and make a lubricant they…
- Varicella (chickenpox) A highly infectious viral disease, known familiarly as chickenpox. (In many countries, this disease is always…
- Small intestine insufficiency See: Short bowel syndrome
- HLA The major human histocompatibility system. HLA-typing is done before transplantation to determine the degree…
- Acid, trans fatty An unhealthy substance, also known as trans fat, made through the chemical process of hydrogenation of oils…
- Colostomy bag A removable, disposable bag that attaches to the exterior opening of a colostomy (stoma) to permit sanitary…