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).
X chromosome
A sex chromosome found in both females and males. Normal females usually have two X chromosomes. Normal males usually have one X along with a Y chromosome. The complete chromosome complement consisting of 46 chromosomes is conventionally…
Read the definitionRandom terms
Show more- Peritonitis, acute Sudden inflammation of the peritoneum, the membrane lining the inner wall of the abdomen and pelvis…
- Virus, negative-strand RNA See: Negative-strand RNA virus
- Demonophobia An abnormal and persistent fear of evil supernatural beings in persons who believe such beings exist and roam…
- Anemia, congenital See: Congenital anemia
- Malady From the French maladie for illness.
- Neurogenesis The process by which new nerve cells are generated. In neurogenesis, there is active production of new…
- Phocomelia A congenital malformation (birth defect) in which the hands and feet are attached to abbreviated arms and…
- Insomnia, fatal familial See Fatal familial insomnia
- Isoform A protein that has the same function as another protein but which is encoded by a different gene and may have…
- Binaural Relating to both ears. From the Latin bini, a pair, + auris, ear = a pair (of) ears = both ears. Synonymous…
- Pollex The thumb. Pollex is derived from the Latin pollere, to be strong, because in a contest of strength the thumb…
- Schizencephaly A developmental disorder of the brain characterized by abnormal slits, or clefts, in the cerebral…