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).
C4 (cervical vertebra)
The fourth cervical (neck) vertebra from the top
Read the definitionRandom terms
Show more- Disease, polycystic ovary See: Polycystic ovarian syndrome
- Disease, Bernard-Soulier Nt platelet syndrome): This disease is a primary problem of platelets in which the platelets lack the ability…
- Nerve, trochlear The trochlear nerve controls the superior oblique muscle of the eye, one of the extraocular muscles, the…
- Cryoprotectant A chemical component of a freezing solution used in cryopreservation (the process of cooling and storing…
- Iatrapistic A lack of faith in doctors. Entirely from the Greek: 'iatr-' indicating a relationship to a physician or…
- Cranial nerve V The fifth cranial nerve is the trigeminal nerve. The trigeminal nerve is quite complex. It functions both as…
- Radioactive Emitting energy waves due to decaying atomic nuclei. Radioactive substances are used in medicine as tracers…
- Hyperconscious More conscious than usual. Extremely aware. People became hyperconscious of Parkinson disease after the actor…
- Mortality, infant The death of an infant before his or her first birthday. The infant mortality rate is, by definition, the…
- Pap test, ThinPrep A modified Pap test technique designed to reduce some of the technical problems inherent in the traditional…
- Gray baby syndrome A syndrome due to toxicity of the antibiotic chloramphenicol in the newborn, especially the premature…
- Phalanges The plural of phalanx. See: Phalanx