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).
Perinatal transmission
Transmission of a disease-causing agent (a pathogen) from mother to baby during the perinatal period, the period immediately before and after birth. The perinatal period is defined in diverse ways. Depending on the definition, it starts at…
Read the definitionRandom terms
Show more- Haemophilus influenzae type B (HIB) immunization This kind of immunization is designed to prevent diseases caused by Haemophilus influenzae type B (HIB), a…
- Perfluorinated acid A type of chemical that repels water and oil and is resistant to heat and chemical stress. Perfluorooctanoic…
- Vitamin K One of two naturally occurring fat-soluble vitamins (vitamin K1 and vitamin K2) needed for the clotting of…
- Erythrophobia An abnormal and persistent fear of blushing. Sufferers of erythrophobia experience undue anxiety even though…
- Accommodation In medicine, the ability of the eye to change its focus from distant to near objects (and vice versa). This…
- Torticollis, spasmodic Spasmodic torticollis, or torticollis, is the most common of the focal dystonias. In torticollis, the muscles…
- Hypothyroidism, infantile Hypothyroidism (subnormal activity of the thyroid gland) that starts after birth and is manifest by features…
- Tilt-table test Tilt-table test: Tilt-table testing involves placing the patient on a table with a foot-support. The table is…
- Granulomatous colitis Crohn's disease of the colon (the large intestine). Crohn's disease is a chronic inflammatory disorder…
- Autosomal chromosome Any chromosome except for the sex chromosomes. Humans have 44 autosomal chromosomes, or autosomes
- Phlebotomy Obtaining blood from a vein. In the old days, this was done by incising (cutting) a vein and just letting the…
- Biermer's anemia Anemia: A blood disorder caused by a lack of vitamin B12. Patients who have this disorder do not produce the…