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).
Rectal bleeding
Rectal bleeding: Blood passed rectally. Blood in the stool can be bright red or maroon in color. Larger amounts of blood that remain in the intestine long enough can turn the stool black. Blood in the stool also may be invisible to the…
Read the definitionRandom terms
Show more- Watchful waiting Closely monitoring a patient's condition but withholding therapy until the sign and symptom appear or change…
- Eosinophilic meningitis Meningitis with a high percentage of eosinophils (a type of white blood cell) in the cerebrospinal fluid…
- Unsteadiness Loss of one's equilibrium in regard to the environment, often with a feeling of almost falling, or the result…
- Anatomical position The position with the body erect with the arms at the sides and the palms forward. The anatomical position is…
- TMS Transcranial magnetic stimulation
- Hong Kong influenza See: Hong Kong flu
- Physical growth A map of the locations of identifiable landmarks on chromosomes. Physical distance is measured in base pairs…
- Shoulder A structure made up of two main bones: the scapula (shoulder blade) and the humerus (the long bone of the…
- A- See: A-
- Anticholinergic The action of certain medications that inhibit the transmission of parasympathetic nerve impulses and thereby…
- Normal growth rate The speed with which normal growth occurs in length before birth and in height after birth. Fetal growth is…
- Muscles, abdominal A large group of muscles in the front of the abdomen that assists in the regular breathing movement and…