MedicalVocabulary.org
Medical vocabulary with 16,436 clear, complete and reliable definitions.
About MedicalVocabulary.org
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).
Loneliness, fear of
An abnormal and persistent fear of loneliness, of being alone. Sufferers of this fear experience undue anxiety even though they realize that being alone does not threaten their well-being. They may worry about being ignored and unloved, or…
Read the definitionRandom terms
Show more- Artery, pulmonary See: Pulmonary artery
- Cavity, abdominal The cavity within the abdomen, the space between the abdominal wall and the spine. The abdominal cavity is…
- Anal papilla A skin tag that projects up from the junction between the skin and the inside lining of the anus. Anal…
- Cryoprobe A surgical probe, a long slender pointed surgical instrument, used to apply extreme cold to tissues. From…
- Obesity-related disease Any disease for which obesity is a significant risk factor. Obesity increases the risk of developing a very…
- Tumor marker Tumor markers are substances that can be detected in higher-than-normal amounts in the blood, urine, or body…
- Nucleocaspid The genome plus the protein coat of a viral. The genome is nucleic acid. The protein coat is the capsid. The…
- Biochemical Relating to biochemistry, the application of the tools and concepts of chemistry to living systems…
- Sawyer's extractor A device designed for first aid that suctions venom from the site of a bite of a poisonous snake or lizard
- Periosteum The periosteum is a dense membrane composed of fibrous connective tissue that closely wraps (invests) all…
- Sphenopalatine neuralgia A distinctive syndrome of headaches, better known today as cluster headache. There are two main clinical…
- Adipocyte A fat cell, a connective tissue cell that has differentiated and become specialized in the synthesis…