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).
Arrhythmias, rapid
Abnormally rapid heart rhythms, medically termed tachycardia
Read the definitionRandom terms
Show more- Human herpesvirus 4 See Epstein-Barr virus.
- Puncture wound An injury caused by a pointed object that pierces or penetrates the skin. Any puncture wound through tennis…
- Onycholysis Loosening of the nail from the nail bed, usually starting at the border of the nail. The nail tends to turn…
- Clubfoot A common malformation of the foot that is evident at birth. The foot is turned in sharply so that the person…
- Diuresis The increased formation of urine by the kidney. See diuretic for more detail
- Vestibular 1) Having to do with a structure that is a vestibule (entrance), such as the vestibule of the ear. 2) Having…
- Voice disorder One of a group of problems involving abnormal pitch, loudness, or quality of the sounds produced by the…
- Serratus posterior superior One of the serratus muscles of the back and thorax. The serratus posterior superior originates from the…
- TSH Stands for thyroid stimulating hormone, a hormone produced by the pituitary gland at the base of the brain in…
- Leaded 1. Framed, covered, or weighted with lead. As a leaded window. 2. Added in the form of tetraethyl lead as an…
- Red blood cell The blood cell that carries oxygen. Red cells contain hemoglobin and it is the hemoglobin which permits them…
- Pituitary, anterior The front portion of the pituitary, a small gland in the head called the master gland. Hormones secreted by…