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).
Chromosomes
The microscopically visible carriers of the genetic material. They are composed of deoxyribonucleic acid (DNA) and proteins and, under a microscope, look like little rods. Humans normally have 46 chromosomes -- 44 autosomes (nonsex…
Read the definitionRandom terms
Show more- Sperm A sperm is the male 'gamete' or sex cell. It combines with the female 'gamete,' called an ovum, to form a…
- MRNA Messenger RNA, the key intermediary in gene expression, translating the DNA's genetic code into the amino…
- Immunoglobulin E Abbreviated IgG. A major class of immunoglobulins found in the blood, including many of the most common…
- Ejaculation Ejection of sperm and seminal fluid
- ADA (American Diabetes Association) The American Diabetes Association (ADA) provides the following introduction: 'The American Diabetes…
- Pituitary, anterior The front portion of the pituitary, a small gland in the head called the master gland. Hormones secreted by…
- Cardiovascular disease Disease affecting the heart or blood vessels. Cardiovascular diseases include arteriosclerosis, coronary…
- CNS (central nervous system) That part of the nervous system that consists of the brain and spinal cord. The central nervous system (CNS)…
- Hairy cell leukemia A form of chronic leukemia in which malignant B-lymphocytes (a type of white blood cell) are seen in the bone…
- Coffin-Lowry syndrome An X-linked form of mental retardation in which the affected males have short stature and characteristic…
- Wet brain See: Cerebral edema
- Fever, dandy An acute mosquito- borne viral illness of sudden onset that usually follows a benign course with headache…