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).
Reticulocytosis
An elevation in the number of reticulocytes (young red blood cells) in blood, a sign of unusually rapid red blood cell production. The number of reticulocytes is normally less than 1% of the total number of the red blood cells. A higher…
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Show more- Sweat test A simple test that is used to evaluate a patient who is suspected of having cystic fibrosis (CF). The goal of…
- Vaginal contraceptive sponge A contraceptive device that is donut-shaped, made of plastic, contains a spermicide (nonoxynol-9) and is…
- IgD Immunoglobulin D, a class of immunoglobulins found as antibodies on the surface of B cells (B lymphocytes)…
- Pantothenic acid Pantothenic acid is vitamin B5, one of the less well known B vitamins, perhaps because it is widely…
- Colinear Arranged in the same linear order. See: Colinearity
- Personality disorder A disorder characterized by the chronic use of mechanisms of coping in an inappropriate, stereotyped, and…
- Photophobia Painful oversensitivity to light. For example, there is photophobia in measles (rubeola). Keeping the lights…
- Sarcoma One of a group of tumors usually arising from connective tissue. Most sarcomas are malignant. Many types are…
- Expressivity The consistency of a genetic disease. For example, Marfan disease shows variable expressivity. Some persons…
- Genome, chromosomal All of the genetic information in the chromosomes of an organism. For humans, that is all of the DNA…
- Anesthetic A substance that causes lack of feeling or awareness. A local anesthetic causes loss of feeling in a part of…
- Guttate psoriasis A type of psoriasis characterized by red, scaly patches of inflamed skin on all parts of the body. It is…