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).
Periostoma
A benign tumor arising from the periosteum, the dense membrane composed of fibrous connective tissue that closely wraps (invests) all bone (except the articular surfaces of bone in joints which are covered by synovial membranes)
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Show more- Chickenpox rash Chickenpox rash: Chickenpox is characterized by a rash, often the first sign of the disease. The rash of…
- Activity, drug A measure of the physiological response a drug produces in the body. A less active drug produces less…
- Postoperative hemorrhage Bleeding after a surgical procedure. The hemorrhage may occur immediately after the surgery or be delayed. It…
- Ut dict. Abbreviation meaning 'as directed' (from the Latin 'ut dictum', as directed). One of a number of hallowed…
- Neck, chronic stiff Also called torticollis or spasmodic torticollis, this is the most common of the focal dystonias: a state of…
- Occiput The back of the head. A direct borrowing of the Latin word for the part of the head opposite the front
- Hematuria, gross Blood in the urine that can be seen with the naked eye. Hematuria may or may not be accompanied by pain, but…
- Congenital bilateral absence of vas deferens A condition in males when the tubes that carry sperm from the testes (the vas deferens) fail to develop…
- TXB2 Thromboxane B2, the inactive product of thromboxane
- Premalignant Pertaining to tissue that is not yet malignant, but is poised to become malignant. Appropriate clinical and…
- Bubble boy disease Severe combined immunodeficiency disease
- Enchondromatosis A condition characterized by multiple enchondromas -- benign masses of cartilage growing within bones. The…