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.
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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).
Polycythemia vera (PV)
Overproduction (proliferation) of red blood cells due to bone marrow disease (myeloproferative disorder). PV tends to evolve into acute leukemia or a condition with the marrow replaced by scar tissue (myelofibrosis). To have PV, there must…
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Show more- PPS (post-polio syndrome) Post-polio syndrome: A constellation of symptoms and signs that appear from 20 to 40 years after the initial…
- Glucose tolerance, impaired See: Impaired glucose tolerance
- Coccygeal vertebrae The coccyx, the small tail-like bone at the bottom of the spine near the anus, is made up of 3-5 (average of…
- Hyperhidrosis, palmoplantar See: Palmoplantar hyperhidrosis
- Glucose, fasting blood Glucose, fasting blood: A method for learning how much glucose (sugar) there is in a blood sample taken after…
- Trichotillomania Compulsive hair pulling. A disorder characterized by the repeated urge to pull out scalp hair, eyelashes…
- Exercise, passive Movement of the body, usually of the limbs, without effort by the patient. The patient is passive
- Hair, lanugal The downy hair on the body of the fetus and newborn baby. The lanugal hair (or lanugo) is the first hair to…
- Epinephrine A substance produced by the medulla (inside) of the adrenal gland. The name epinephrine was coined in 1898 by…
- Glucose-6-phosphate dehydrogenase (G6PD) Deficiency of G6PD is the commonest disease-causing enzyme defect in humans affecting an estimated 400…
- NTD Neural tube defect, a major birth defect caused by abnormal development of the neural tube, the structure…
- Immunosuppressant An agent that can suppress or prevent the immune response. Immunosuppressants are used to prevent rejection…