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).
Sperm motility
The percentage of all moving sperm in a semen sample. In a semen sample, 50% or more of the sperm should normally be moving rapidly
Read the definitionRandom terms
Show more- Piercing Using a sharp instrument, usually a needle, to make a temporary or permanent hole through an earlobe or other…
- Diverticulum, Zenker See: Zenker diverticulum
- Thyroid gland A gland that makes and stores hormones that help regulate the heart rate, blood pressure, body temperature…
- DNA cloning The use of DNA manipulation procedures to produce multiple copies of a single gene or segment of DNA
- Artery, femoral See: Femoral artery
- B cell A type of white blood cell and, specifically, a type of lymphocyte. Many B cells mature into what are called…
- Gram calorie (Calorie) The Danish bacteriologist J.M.C. Gram (1853-1938) devised a method of staining bacteria using a dye called…
- Intra-arterial pressure The pressure of the blood within an artery, the arterial pressure. Also called the arterial tension
- Acid rain Rain resulting from the combination of fossil fuel emissions and water in the atmosphere. The environmental…
- Gigantism, focal Excessive growth of specific body parts such as an arm, the tongue, or a combination of specific body parts…
- Donor, universal A person who is type O in the ABO blood group system and can donate blood to all recipients
- Abdominal Relating to the abdomen, the belly, that part of the body that contains all of the structures between the…