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).
Nef gene
Short for negative factor gene, a gene the absence (or defect) of which diminishes the strength of a disease. The term Nef gene was coined in 1989 in respect to HIV (the human immunodeficiency virus) and AIDS. The Nef gene in this…
Read the definitionRandom terms
Show more- Monochromat A person with one of the many forms of colorblindness
- Nutrition Nutrition: 1) The science or practice of taking in and utilizing foods. 2) A nourishing substance, such as…
- Food-insecure Referring to the situation when people need to live with hunger and fear starvation
- Rod Beals See: Beals, Rodney K.
- Prostatectomy, retropubic See: Retropubic prostatectomy
- Hyperaldosteronism Overproduction of the hormone aldosterone from the outer portion (cortex) of the adrenal gland or a tumor…
- FFN Fetal fibronectin
- Histone A protein around which DNA coils to form chromatin. Without this protein material, DNA could not organize…
- Demonophobia An abnormal and persistent fear of evil supernatural beings in persons who believe such beings exist and roam…
- Incontinence of urine Inability to hold urine in the bladder. This is due to failure of voluntary control over the urinary…
- Infant mineral requirements Minerals (calcium, phosphorus, magnesium, iron, iodine, copper and zinc) and trace elements (manganese…
- Retinal disease In medicine, called retinopathy. See: Retinopathy