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).
Cell, stem
An ancestral cell, the most primitive type of cell. Stem cells are relatively unspecialized (undifferentiated) cells that are characteristically of the same family type (lineage). They retain the ability to divide throughout life and give…
Read the definitionRandom terms
Show more- Rest 1. Repose. Relaxation.2. A fragment of embryonic tissue that has been retained after the period of embryonic…
- SJS Stevens-Johnson syndrome.
- Angiostrongyliasis Infection with the parasitic nematode (roundworm) Angiostrongylus. The two species that infect humans are A…
- Seizure, Jacksonian See: Jacksonian seizure
- Male gonad The male gonad, the testicle (or testis), located behind the penis in a pouch of skin (the scrotum). The…
- Codon A set of any three adjacent bases in the DNA or RNA. There are 64 different codons of which 61 specify the…
- Inch In length, 1/12th of foot or 1/36 of a yard or, metrically, 2.54 centimeters. The inch, along with the foot…
- A (adenine) In genetics, A stands for adenine, one member of the A-T (adenine-thymine) base pair in DNA. The other base…
- American Association for Advancement of Science Spoken of as the 'triple-AS', the American Association for the Advancement of Science is an organization…
- Arrhythmias, atrial Abnormal heart rhythm due to electrical disturbances in the atria (the upper chambers of the heart) or the AV…
- Synovial lining The lining of the joint.
- Good-for-you bacteria Bacteria that are good for health. Lactobacillus acidophilus are a type of good-for-you bacteria. The term is…