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).
Amelanotic
Without melanin. A skin lesion that is amelanotic lacks the pigment melanin and therefore is essentially colorless. From the Greek roots a-, without + melas, black
Read the definitionRandom terms
Show more- Guided imagery An alternative medicine technique in which patients use their imagination to visualize improved health, or to…
- Transplantation, peripheral blood stem cell A new technique in which stem cells are obtained from a patient's blood and used in bone marrow…
- Allergic conjunctivitis Inflammation of the whites of the eyes (the conjunctivae) with itching and redness of the eyes and tearing…
- Hip pointer Sportstalk for an iliac crest contusion (a bruise of the upper edge of the ilium, one of the hip bones).
- Dysplasia, cleidocranial >Absent or incompletely formed collar bones (the 'cleido-' part refers to the clavicles, the collar bones)…
- Infection, opportunistic An infection that occurs because of a weakened immune system. Opportunistic infections are a particular…
- Infantile autism Autism: (Also called autism.) A spectrum of neuropsychiatric disorders characterized by deficits in social…
- Phonosurgery Surgical procedures that maintain, restore, or enhance the human voice. Phonosurgery includes…
- Reaction, polymerase chain See: Vasovagal reaction.
- Cyto- Colorblindness of the red-green type (also known as deuteranopia or deuteranomaly). The term "Daltonism" is…
- Trip-hammer pulse See: Pulse, water hammer
- Scratch test for allergy A mammogram (an X-ray of the breast) in women who have no signs of breast cancer. It usually involves two…