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).
PCO
1. Abbreviation in medical records for 'Patient complains of.' 2. Abbreviation for polycystic ovary. See also: Polycystic ovarian syndrome
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- Cranial nerve I The first nerve to emerge from or enter the skull (the cranium). (There are twelve cranial nerves.) The first…
- Muscular atrophy, post-polio (PPMA) Late muscle wasting that occurs as part of the post-polio syndrome (PPS), a constellation of symptoms and…
- Control (research) In research, control subjects or control procedures permit comparison with experimental results. The first…
- Rib, fluctuating One of the last two ribs. A rib is said to be 'fluctuating' if it does not attach to the sternum (the breast…
- Pax3 One in a family of Pax genes involved in regulating embryonic development at the level of transcription. The…
- Thermometer, ear A thermometer that registers body temperature via the ear canal. The ear thermometer was invented in 1964 by…
- Beau's lines Transverse lines or grooves across the fingernails; transverse depressions in the nail plate. Beau's lines…
- Lobe Part of an organ that appears to be separate in some way from the rest. A lobe may be demarcated from the…
- Adrenal medulla The inner portion of adrenal gland. (The outer portion is the adrenal cortex). The adrenal medulla makes…
- Plague, bubonic The most common form of the plague named for the characteristic buboes which are enlarged lymph nodes…
- Transudate A fluid that passes through a membrane which filters out much of the protein and cellular elements to yield a…