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.
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OS (lens prescription)
Abbreviation of 'oculus sinister.' Latin for 'left eye.' By contrast, OD stands for 'oculus dexter' which is Latin for the right eye.
Read the definitionRandom terms
Show more- FAS diagnosis See: Fetal alcohol syndrome diagnosis
- Developmental dyspraxia A pattern of delayed, uneven, or aberrant development of physical abilities during childhood development. The…
- Argon laser A laser with ionized argon as the active medium. Argon lasers are used for photocoagulation in ophthalmology
- Percentile The percentage of individuals in a group who have achieved a certain quantity (such as height, weight, and…
- Rubella vaccine A vaccine designed to prevent rubella, or German measles. German measles was once seen merely as a child's…
- Facies A direct borrowing from the Latin, facies means face.
- Multidetector-row computed tomography See: Multidetector computed tomography
- Epinephrine A substance produced by the medulla (inside) of the adrenal gland. The name epinephrine was coined in 1898 by…
- Melanoma, lentigo maligna One of the four clinical types of malignant melanoma and the slowest growing one. It typically begins as a…
- Volar Pertaining to both the palm and sole. It comes from word 'vola' which the ancient Romans used for 'the palm…
- Peripheral Situated away from the center, as opposed to centrally located. For example, peripheral vision means the type…
- Dermatographism A common form of hives that follows the repeated stroking, rubbing or scratching of the skin, or when…