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).
Nasal mucus
A slippery fluid produced by the membranes lining the nose. Excessive nasal mucus is the basis of a runny nose. Mucus is the Latin word for 'a semifluid, slimy discharge from the nose.
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Show more- Anal fissure Anal fissure: Common tear in the anal canal. Anal fissure is a common cause of red blood in the stool.
- Amyotrophic lateral sclerosis 2 ALS2. A juvenile-onset form of amyotrophic lateral sclerosis (ALS) inherited in an autosomal recessive manner…
- Surgery, stereotactic Surgery in which a system of three- dimensional coordinates is used to locate the site to be operated on…
- Cotinine The major metabolite (breakdown product) of nicotine. Exposure to nicotine can be measured by analyzing the…
- Cluster In epidemiology, an aggregation of cases of a disease or another health-related condition, such as a cancer…
- Vaccination, Haemophilus influenzae type B (HIB) Immunization designed to prevent diseases caused by Haemophilus influenzae type B (HIB), a bacteria…
- B virus An infectious agent commonly found among macaque monkeys, including rhesus macaques, pig-tailed macaques, and…
- International unit (IU) An international unit (IU) is an internationally accepted amount of a substance. This type of measure is used…
- Infant formula A substitute for breast milk for feeding infants. Pediatricians generally advise exclusively breastfeeding…
- Vital bodily function 1. An essential bodily function. 2. A key function for life. 3. A function required by most, if not all…
- Cramps, heat Painful muscle spasms in the abdomen, arms, or legs following strenuous activity. The skin is usually moist…
- External genitalia, female See: Female external genitalia