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).
Control (genetic)
The control of gene expression. Genetic control may be on the transcriptional or translational level. Transcriptional control works by controlling the number of RNA transcripts of a region of DNA, indirectly controlling protein synthesis…
Read the definitionRandom terms
Show more- Ductal carcinoma in situ See: DCIS
- Amino acid, nonessential An amino acid that can be made by humans and so is not essential to the human diet. There are 11 nonessential…
- FEV1 Forced Expiratory Volume in the first second. The volume of air that can be forced out in one second after…
- Gesell Developmental Schedules A measure of child development devised by the American child psychologist and pediatrician Arnold Gesell…
- Total laryngectomy A surgical procedure in which the whole voice box is removed, and the stoma opening into the larynx is…
- Elbow The juncture of the long bones in the middle portion of the arm. The bone of the upper arm (humerus) meets…
- ADU Accessory dwelling unit
- Downregulation An decrease in the number of receptors on the surface of target cells, making the cells less sensitive to a…
- Thyroid hormone organification defect IIb See Pendred syndrome
- Doctor discontent See: Physician discontent
- Retinal vein, central The blood vessel that carries blood away from the retina of the eye. The counterpart to the central retinal…
- DEHP A softener for polyvinyl chloride (PVC), a plastic polymer used in a wide array of products. Unplasticized…