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).
Headache, hypnic
See: Hypnic headache
Read the definitionRandom terms
Show more- Mouth mirror A little mirror on a rod that is used to examine the teeth and other structures within the mouth
- Antibody-dependent cell-mediated cytotoxicity An immune response in which antibody, by coating target cells, makes them vulnerable to attack by immune…
- Diachronic The word 'diachronic' is from the Greek dia-, through + chronos, time = through time. As opposed to…
- Saccharin An artificial sweetener which diluted in water is 300-500 times sweeter than the sugar sucrose. (Saccharin is…
- Oncogene 1. A gene that played a normal role in the cell as a proto-oncogene and that has been altered by mutation and…
- Heteroclite Deviating from the ordinary; irregular or abnormal; anomalous. As, for example, retroviruses represent a…
- Body mass index A key index for relating a person's body weight to their height. The body mass index (BMI) is a person's…
- CDNA Complementary DNA. cDNA is single-stranded DNA made in the laboratory from a messenger RNA template under the…
- Anti-platelet agents Medications that, like aspirin, reduce the tendency of platelets in the blood to clump and clot
- Hypnolepsy A neurological disorder marked by a sudden recurrent uncontrollable compulsion to sleep. Also known as…
- Fasciolopsiasis Infection with Fasciola flukes such as Fasciolopsis buski. See: Fasciolopsis
- NINDS Stands for the National Institute of Neurological Disorders and Stroke, one of the National Institutes of…