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).
Erectile dysfunction
A common men's health problem characterized by the consistent inability to sustain an erection sufficient for sexual intercourse or the inability to achieve ejaculation, or both. Impotence can vary. It can involve a total inability to…
Read the definitionRandom terms
Show more- SERM Selective Estrogen-Receptor Modulator
- Traditional midwife A direct-entry midwife practicing within the confines of traditional folk medicine. Traditional midwives are…
- Extravasate To exude from or pass through the walls of a vessel into the surrounding tissues. Blood, lymph, or urine can…
- Endocrine Pertaining to hormones and the glands that make and secrete them into the bloodstream through which they…
- Ventricular septum The wall between the two lower chambers (the right and left ventricles) of the heart
- Afferent vessel A vessel that carries blood toward the heart. A vein or venule
- Facultative 1. In general, not obligatory but rather capable of adapting to different conditions. The opposite of…
- Parasitemia The presence of a parasite in the blood. For example, malarial parasitemia. Parasitemia is analogous to…
- Diffuse degeneration of gray matter with cirrhosis Ic cirrhosis, Alpers: A progressive disease of the nervous system characterized by spasticity (tightness)…
- MSG Monosodium glutamate, a sodium salt of the amino acid glutamic acid that enhances the flavor of certain…
- Areola 1. The small darkened area around the nipple of the breast. 2. The colored part of the iris around the pupil…
- Paraskevidekatriaphobia Fear of Friday the 13th. The word 'paraskevidekatriaphobia' was devised by Dr. Donald Dossey who told his…