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).
Cross-section
In anatomy, a cross-section is a transverse cut through a structure or tissue. The opposite of a cross-section is a longitudinal section. By analogy, a study may be cross-sectional or longitudinal
Read the definitionRandom terms
Show more- Sign, Tinel's An examination test that is used by doctors to detect an irritated nerve. Tinel's sign is performed by…
- Mag sulfate Informal shortening of magnesium sulfate
- Hereditary prostate cancer Prostate cancer: A genetic form of prostate cancer. The risk of prostate cancer is clearly genetic. Men with…
- Astrocytoma A tumor that begins in the brain or spinal cord in small, star-shaped cells called astrocytes. The location…
- MCTD Abbreviation standing for Mixed Connective Tissue Disease, an overlapping mixture of three diseases of…
- Solar keratosis Synonymous with actinic keratosis. See: Keratosis, actinic
- Eye retraction syndrome See: Duane syndrome
- High blood sugar An elevated level of the sugar glucose in the blood. Also called hyperglycemia. High blood sugar is a finding…
- Hypervolemia An abnormal increase in blood volume or, strictly speaking, an abnormal increase in the volume of blood…
- Genomic segment A region of the genome; it encompasses objects described as loci or probes. Genomic segments can range in…
- Hormone, progesterone A female hormone, progesterone is the principal progestational hormone. Progestational hormones prepare the…
- Rabies Rabies: A potentially fatal viral infection that attacks the central nervous system. The rabies virus is…