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).
Precancerous
Pertaining to something that is not yet overtly cancerous, but appears to be on its way to becoming a cancer. Synonymous with premalignant
Read the definitionRandom terms
Show more- Os calcis See: Calcaneus
- Difficult urination See: Dysuria
- West syndrome Infantile spasms, a seizure disorder of infancy and early childhood with the onset predominantly in the first…
- Pregnancy, ectopic A pregnancy that is not in the usual place and is located outside the inner lining of the uterus. A…
- Ductus, patent Failure for the ductus arteriosus, an arterial shunt in fetal life, to close on schedule. Before birth, blood…
- Aux- Prefix indicating growth or increase
- Social anxiety disorder Excessive fear of embarrassment in social situations that is extremely intrusive and can have debilitating…
- Syncope The temporary loss of consciousness upon coughing. Syncope is the temporary loss of consciousness or, in…
- Zygote intrafallopian transfer (ZIFT) A technique in which a woman's egg is fertilized outside the body, then implanted in one of her fallopian…
- Ozone A form of oxygen that consists of three atoms of oxygen, in contrast to normal atmospheric oxygen which…
- Retrospective Looking backward on the past, on what has already taken place. A retrospective study looks backward in time…
- Vitreous type 2 Stickler syndrome Stickler syndrome, type II. See: Stickler syndrome