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).
Hydrocephalus
Hydrocephalus: Hydrocephalus is an abnormal buildup of cerebrospinal fluid (CSF) in the ventricles of the brain. The fluid is often under increased pressure and can compress and damage the brain. Hydrocephalus can arise before birth or any…
Read the definitionRandom terms
Show more- Ejaculate To ejaculate is to release semen during an orgasm in a male. The ejaculate (used as a noun) is the semen.
- Acid reflux A common condition and an abnormal one in which acid in the stomach rises up into the esophagus. This occurs…
- Selenocysteine An amino acid in which selenium takes the place of sulfur in the amino acid cysteine. Its formula is…
- TMA See Trimethylaminuri
- Male organs of reproduction >The male external genitalia -- the penis, the male urethra, and the scrotum; and >The male internal…
- EMSY A novel protein that connects the familial and sporadic forms of breast cancer and ovarian cancer. Some cases…
- Lobular carcinoma of the breast, infiltrating Breast, infiltrating: Infiltrating lobular carcinoma is the second most common type of invasive breast cancer…
- CCD (cleidocranial dysostosis) >Absent or incompletely formed collar bones (the 'cleido-' part refers to the clavicles, the collar bones)…
- Anaphia The inability to feel touch. From the Greek prefix an, not + Greek haphe, touch = inability to (feel) touch…
- Line, central venous A catheter (tube) that is passed through a vein to end up in the thoracic (chest) portion of the vena cava…
- Td Adult diphtheria and tetanus toxoids. See Td immunization
- Mapping, gene The process of determining the relative positions of genes on a chromosome (or another piece of DNA) and the…