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).
Ear, middle
There are three sections of the ear. They are the external ear, the middle ear, and the inner ear. The middle ear consists of the ear drum (the tympanum or tympanic membrane) and, beyond it, a cavity. This cavity is connected via a canal…
Read the definitionRandom terms
Show more- Endochondral bone Any bone that develops in and replaces cartilage. The cartilage is partially or entirely destroyed by the…
- Last menstrual period By convention, pregnancies are dated in weeks starting from the first day of a woman's last menstrual period…
- Smallpox vaccination of fetus See Congenital vaccinia
- Yolk stalk A narrow tube present in the early embryo that connects the midgut of the embryo to the yolk sac outside the…
- Musicomania A singular passion for music that is excessive and beyond all reason. From the French musicomanie, from music…
- Meter, peak-flow This hand-held device measures air flow (how fast air is blown out of the lungs). Patients can use peak-flow…
- Recalls, FDA Recalls: The recall of a defective or possibly harmful product by the US Food & Drug Administration (the…
- Aldosterone A hormone made by the outer portion (cortex) of the adrenal gland that regulates the balance of salt and…
- Osmole In biochemistry, the amount of a substance that dissociates in solution to form one mole of osmotically…
- Elective In medicine, something chosen (elected). An elective procedure is one that is chosen (elected) by the patient…
- Depression, winter Depression, winter: See: SAD
- Disorder, mathematics A condition characterized by math skills that are significantly below normal, given the person's age…