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.
- 100% free
- No registration
- No intrusive ads
- Privacy by design
- Mobile friendly
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).
Sperm
A sperm is the male 'gamete' or sex cell. It combines with the female 'gamete,' called an ovum, to form a zygote. The formation process is called 'fertilization.' (see ovum, zygote).
Read the definitionRandom terms
Show more- Human T-lymphotropic virus type I (HTLV-I) A virus often referred to simply as the human T-lymphotropic virus (HTLV). HTLV-II stands for human…
- CAT scan 4 cel ODYvAlign=top bgColor=#cccccc colSpan=2> vAlign=top width='100%' bgColor=#ffffff>Our CAT scan Main…
- Appendix rupture Rupture of appendix
- Poisoning, alcohol A condition in which a toxic amount of alcohol (ethanol, ethyl alcohol) has been drunk, usually in a short…
- Causes of cancer Cancer is a group of more than 100 different diseases. Benign tumors are not cancer; malignant tumors are…
- Hiatus An opening, as in the diaphragm. When there is an unusually wide opening in the diaphragm, there can be a…
- Mm Abbreviation for millimeters. For example, mm Hg means millimeters of mercury, the height of a column of…
- Unit, international (IU) An international unit (IU) is an internationally accepted amount of a substance. This type of measure is used…
- Plague, fowl The "Great Plague" that swept London in 1665 was probably not really the plague but rather typhus. The plague…
- Edentulous Being without teeth. Complete loss of all natural teeth can substantially reduce quality of life, self-image…
- Zygote intrafallopian transfer (ZIFT) A technique in which a woman's egg is fertilized outside the body, then implanted in one of her fallopian…
- Radial head subluxation See: Nursemaid's elbow