MedicalVocabulary.org
Medical vocabulary with 16,436 clear, complete and reliable definitions.
About MedicalVocabulary.org
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).
Motor neuron disease
A group of neurological diseases characterized by steadily progressive deterioration of the motor neurons in the brain, brainstem and spinal cord that send instructions in the form of electrical impulses to the muscles, leading to muscle…
Read the definitionRandom terms
Show more- Enzyme, restriction An enzyme from bacteria that can recognize specific base sequences in DNA and cut the DNA at that site (the…
- Tandem repeat sequences Multiple copies of the same DNA base sequence on a chromosome; used as a marker in physical mapping of the…
- Hepat- Having to do with the liver. Pronounced hi-'pa-tik. From the Latin hepaticus derived from the Greek hepar…
- Subtelomeric Below the telomere, the end of a chromosome. For example, it has been reported that subtle subtelomeric…
- Eyelash One of the familiar stiff hairs that project from the margin of the eyelid. Eyelashes tend to be noticed…
- Guillain-Barre syndrome Guillain-Barre syndrome: A disorder characterized by progressive symmetrical paralysis and loss of reflexes…
- Ultraviolet B One of the three types of invisible light rays (together with ultraviolet A and ultraviolet C) given off by…
- Androstenedione A pivotal adrenal steroid that is a precursor to testosterone and other androgens. Known popularly as andro…
- Periodic fever Recurrences of fever that last from a few days to a few weeks and are separated by symptom-free intervals of…
- Pseudoobstruction, neuropathic Intestinal pseudoobstruction caused by damage to nerve cells in the walls of the bowel
- Induration Induration: Localized hardening of soft tissue of the body. The area becomes firm, but not as hard as bone
- Lithotomy position Position in which the patient is on their back with the hips and knees flexed and the thighs apart. The…