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).
Oneiric
Relating to dreams; dream-like. From the Greek 'oneiros' (dream). See oneirophrenia
Read the definitionRandom terms
Show more- Pulmonary stenosis, peripheral, with cholestasis Also known as arteriohepatic dysplasia or Alagille syndrome, this ia a genetic disorder characterized by…
- Transferrin A plasma protein that transports iron through the blood to the liver, spleen and bone marrow. The blood…
- Disk, intervertebral See: Intervertebral disk
- Oligonucleotide A small DNA molecule composed of a few nucleotide bases. The term 'oligonucleotide' applies similarly to RNA
- Cancer Cancer: An abnormal growth of cells which tend to proliferate in an uncontrolled way and, in some cases, to…
- Thromboxane B2 The inactive product of thromboxane. Abbreviated TXB2
- Mydriasis Dilation of the pupils induced by eyedrops. The opposite of miosis.
- Eyelid myokymia Fine continuous contractions of the eyelid muscle, typically involving one of the lower eyelids, less often…
- Hemoptysis Spitting up blood or blood-tinged sputum. Pronounced he-MOP-tis-is. The word 'hemoptysis' comes from the…
- Marker, blood A sign of a disease or condition that can be isolated from a blood sample. For example, the monoclonal…
- Fever, Lassa See: Lassa fever
- Hamartoma A benign (noncancerous) tumor-like growth consisting of a disorganized mixture of cells and tissues normally…