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).
Streptococcus pyogenes
A common bacteria of the skin that causes strep throat (streptococcal pharyngitis), impetigo, other skin infections, rheumatic fever, scarlet fever, glomerulonephritis, and invasive fasciitis
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Show more- Syndrome, Martorell See: Takayasu disease
- Magnesium deficiency Can occur due to inadequate intake or impaired intestinal absorption of magnesium. Low magnesium…
- Gingivitis, Vincent This is trench mouth, a progressive painful infection with ulceration, swelling and sloughing off of dead…
- Serial amnioreduction The repeated removal of large volumes of amniotic fluid by amniocentesis. The rationale for serial…
- Quater in die (on prescription) Seen on a prescription, qid (or q.i.d.) means 4 times a day (from the Latin quater in die). The abbreviation…
- Ab ovo Latin expression for 'from the beginning.' Ab ovo literally means 'from the egg.
- Collapsed lung Failure of full expansion of a once fully expanded lung. Medically called atelectasis. The word comes from…
- Fetal alcohol syndrome Fetal alcohol syndrome: The sum total of the damage done to the child before birth as a result of the mother…
- Fear of joy An abnormal, excessive, and persistent fear of experiencing joy or pleasure. Sufferers with this most…
- Goiter, toxic multinodular Condition in which the thyroid gland contains multiple lumps (nodules) that are overactive and produce excess…
- Ab- Prefix meaning 'from, away from, off' as in abduction (movement of a limb away from the midline of the body)…
- Medical jurisprudence The branch of the law that deals with the application of law to medicine or, conversely, the application of…