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).
Sequence, intervening
An intervening sequence is the part of a gene that is initially transcribed from the DNA into RNA (specifically, into the primary RNA transcript) but then is excised (removed) from it when the so-called exxon sequences on either side of it…
Read the definitionRandom terms
Show more- Pelvic exam An examination of the organs of the female reproductive system. In a pelvic exam, a speculum (an instrument…
- Poland syndrome Poland syndrome: A developmental disorder of the chest wall involving a unique pattern of one-sided…
- Longitudinal The word come from the Latin longitudo meaning length. Hence, longitudinal means along the length, running…
- Regurgitation, aortic See: Aortic regurgitation
- Enchondromatosis A condition characterized by multiple enchondromas -- benign masses of cartilage growing within bones. The…
- Binswanger disease A form of dementia with blood vessel abnormalities in the deep white-matter of the brain causing loss of…
- Sight, day Night blindness. Listed in medical dictionaries under 'Nyctalopia' from the Greek 'nyct' (night) + 'aloas'…
- Antiseptic Something that discourages the growth microorganisms. By contrast, aseptic refers to the absence of…
- Aniso- Unequal, unlike, or dissimilar. As in anisocoria, anisocytosis, and anisometropia. From the Greek anisos…
- Quasi- Prefix meaning seemingly. As, for example, in quasidominant, seemingly dominant.
- Ramsay Hunt syndrome Ramsay Hunt syndrome: A herpes virus infection of the geniculate nerve ganglion that causes paralysis of the…
- Mast syndrome An autosomal recessive form of hereditary spastic paraplegia with dementia first described in the Old Order…