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).
Circadian
Refers to events occurring within a 24-hour period, in the span of a full (24-hour) day, as in a circadian rhythm. Circadian rhythmicity is a fundamental property possessed by all organisms. These rhythms are driven by an internal…
Read the definitionRandom terms
Show more- Count, absolute CD4 See: Absolute CD4 count
- Salivary gland One of the glands in the mouth that produce saliva. There are 3 major salivary glands. They are the parotid…
- Hepatology The field of liver disease. The liver is the body's largest organ and hepatology is a large field. It…
- Poland syndactyly A unique pattern of one-sided malformations characterized by a defect of the chest (pectoralis) muscle on one…
- Globus minor The globus minor is the tail of the epididymis, a cordlike structure just behind the testis. The globus major…
- Filovirus A family of viruses that cause hemorrhagic fever. Filoviruses have single- stranded RNA as their genetic…
- Spit 1. As a noun: Popular term for sputum.2. As a verb: To eject sputum; to expectorate.See: Sputum
- Nondisjunction Failure of paired chromosomes to disjoin (separate) during cell division so that both chromosomes go to one…
- Daily Value The abnormal formation of the hip joint in which the ball at the top of the thighbone (the femoral head) is…
- Schistosome A parasitic trematode worm contracted from infested water that is capable of causing liver, gastrointestinal…
- Deja vu (In French, dejà vu means 'already seen.' and the word dejà has an acute accent on the e and a grave accent…
- Transition, menopause Menopause: A woman can usually tell if she is approaching menopause because her menstrual periods starts…