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.
- 100% free
- No registration
- No intrusive ads
- Privacy by design
- Mobile friendly
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).
Porphyria
A diverse group of diseases in which the production of heme is disrupted. Porphyria is derived from the Greek word 'porphyra', which means purple. When heme production is faulty, porphyrins are overproduced and lend a reddish-purple color…
Read the definitionRandom terms
Show more- Restriction fragment length polymorphism A difference in DNA between people that can be recognized by the use of a restriction enzyme. Referred to as…
- Disease, mad deer See Chronic wasting disease
- Flu Short for influenza. The flu is caused by viruses that infect the respiratory tract which are divided into…
- Chloride The major anion (negatively charged substance) in the blood and extracellular fluid (the body fluid that lies…
- Incontinence of urine Inability to hold urine in the bladder. This is due to failure of voluntary control over the urinary…
- Syndrome, Meniere A condition with recurrent vertigo accompanied by ringing in the ears (tinnitus) and deafness. Symptoms…
- Complex partial seizure A form of partial seizure during which the person loses awareness. The patient does not actually become…
- Complementary medicine A group of diagnostic and therapeutic disciplines that are used together with conventional medicine. An…
- Fungal Pertaining to a fungus. For example, a fungal skin infection
- Transvestitism Transvestitism, or transvestic fetishism, refers to the practice by heterosexual males of dressing in female…
- Trismus Inability to open the mouth fully. This may be due to spasm of the jaw muscles and be a symptom of tetanus…
- Quadriplegic Pertaining to quadriplegia (paralysis of all four limbs -- both arms and both legs), as from a high spinal…