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).
Congenital deafness
Deafness: Loss of hearing present at birth. Congenital deafness contrasts to acquired deafness which occurs after birth. The distinction between congenital and acquired deafness specifies only the time that the deafness appears. It does…
Read the definitionRandom terms
Show more- Cloning vector A DNA molecule originating from a virus, a plasmid (see below) or the cell of a higher organism into which…
- Gel electrophoresis The process in which molecules (such as proteins, DNA, or RNA fragments) can be separated according to size…
- Popliteal fossa The hollow behind the knee
- Test, ovarian cancer CA 125 A screening test for cervical cancer based on the examination under the microscope of cells collected from…
- MS/MS Abbreviation for tandem mass spectrometry. See: Tandem mass spectrometry
- Hansen bacillus Mycobacterium leprae, the agent of leprosy (Hansen disease)
- Tone deafness The inability to recognize musical tones or reproduce them. Also called amusia
- Malformation A structural defect in the body due to abnormal embryonic or fetal development. There are many types of…
- Human chorionic gonadotropin (hCG) A human hormone made by chorionic cells in the fetal part of the placenta. Human chorionic gonadotropin…
- Eye chart, Snellen's The familiar eye chart used to measure how well you see at various distances. Snellen's chart is imprinted…
- Symptom of pregnancy See: Pregnancy symptom
- GOLD-2 One of the stages of chronic obstructive lung disease (COPD), according to the Global Initiative for Chronic…