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).
Nyctophobia
Pathological fear of the dark, an abnormal and persistent dread of the dark. Sufferers experience anxiety even though they may rationally realize that the dark does not pose a threat commensurate with their fear. Formed from the Greek…
Read the definitionRandom terms
Show more- Excess selenium Too much selenium (selenosis) which may cause reversible balding and brittle nails, give a garlic odor to the…
- Dermal Pertaining to the skin. From the Greek word derma for skin
- Melanoma, amelanotic A form of melanoma in which the malignant cells (melanocytes) do not make the pigment melanin. Amelanotic…
- Thrombi Just the plural of thrombus. See: Thrombus
- Kubler-Ross, Elizabeth See: Kubler-Ross, Elisabeth
- Ova Plural form of ovum
- Psychotropic drug Any drug capable of affecting the mind, emotions, and behavior. Some legal drugs such as lithium for…
- Atropine psychosis A syndrome characterized by dry mouth, blurred vision, forgetfulness, and difficulty with urination triggered…
- Hypotension, orthostatic A temporary lowering of blood pressure (hypotension) due usually to suddenly standing up (orthostatic)…
- Dermicidin A potent anti-infective agent that is a natural component of sweat. The first antimicrobial agent found that…
- FAE (fetal alcohol effects) A softer diagnosis than fetal alcohol syndrome (FAS). The diagnosis of possible FAE is considered when: 1…
- Arterial tension The pressure of the blood within an artery, the arterial pressure. Also called the intra-arterial pressure