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).
Photophobia
Painful oversensitivity to light. For example, there is photophobia in measles (rubeola). Keeping the lights dim or the room darkened may be useful. Sunglasses may also help. Whereas most phobias are abnormal, excessive, and irrational…
Read the definitionRandom terms
Show more- Snoreplasty, injection An injection of a chemical called sodium tetradecyl sulfate that promotes stiffening of the soft palate by…
- Heat syncope Sudden dizziness, feeling faint ans sometimes fainting experienced after exercising in the heat. The skin…
- SDF-1 An intensely itchy rash due to contact with the tiny thimble jellyfish (Linuche unguiculata). These jellyfish…
- Rooting reflex A reflex seen in newborn babies, who automatically turn their face toward the stimulus and make sucking…
- Breast pain Pain in the breast or mammary gland, known medically as mastalgia. From the Greek masto-, breast + algos, pain
- Depression, dysthymia A type of depression involving long-term, chronic symptoms that are not disabling, but keep a person from…
- T-suppressor cell A type of immune cells, also called T8 cells, these cells close down the immune response after it has…
- Koplik's spots Little spots inside the mouth that are highly characteristic of the early phase of measles (rubeola). The…
- Patient controlled analgesia See: PCA
- Osteoclasia Destruction and reabsorption of bone tissue, as occurs when broken bones heal
- Amnesia Lack of memory. Amnesia after trauma can be antegrade or retrograde, depending upon whether the lack of…
- Kiddie-cam See: Kiddie cam