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).
Di-
A byproduct of the male hormone testosterone. Dihydrotestosterone (DHT) is considered to be the essential androgenic hormone. DHT is responsible for the formation of male primary sex characteristics during embryonic life. It is responsible…
Read the definitionRandom terms
Show more- Rooting reflex A reflex seen in newborn babies, who automatically turn their face toward the stimulus and make sucking…
- Blackhead A familiar term for what is medically called an open comedo. A comedo, the primary sign of acne, consists of…
- Polydipsia Excessive thirst all the time. Polydipsia occurs, for example, in untreated or poorly controlled diabetes…
- Separation anxiety Separation anxiety: A developmental stage during which a child experiences anxiety when separated from the…
- Ascaris The intestinal roundworm, a worm that lives in the small intestine. Infection with ascaris is the most common…
- Knockout mouse A mouse missing a single gene (that has been knocked out). Knockout mice are used in biomedical research
- Lung, collapsed Failure of full expansion of a once fully expanded lung. Medically called atelectasis. The word comes from…
- Transition, menopause Menopause: A woman can usually tell if she is approaching menopause because her menstrual periods starts…
- Plummer-Vinson syndrome Iron deficiency anemia, esophageal webs, and dysphagia (difficulty swallowing). The iron deficiency is…
- Effect, founder A population group with an unusual frequency of a gene due to there having been only a small number of…
- Salk vaccine Vaccine against poliomyelitis named for Dr. Jonas Salk who developed and introduced it in 1955. It was the…
- Choana (Plural: choanae) The passageway from the back of one side of the nose to the throat. There are two choanae…