Mindblown: a blog about philosophy.
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Refugee
A person fleeing danger or distress, especially in times of war or political persecution.
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Refuge
A shelter; a safe place for persons fleeing danger or distress.
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Refresh
To restore strength; to relieve from fatigue; to renew; to revive.
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Refractory cytopenia with multilineage dysplasia
In the World Health Organization classification of myelodysplastic syndromes, a disorder in which two or more blood cell lines form aberrantly. For example, the peripheral blood shows evidence of anemia and leukopenia, or of anemia, leukopenia, and thrombocytopenia; and the bone marrow shows abnormal precursors in two or more mature blood cell precursors.
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Refractivity
The quality of being refractive; the ability to refract.
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Refractive power
The degree to which a transparent body deflects a ray of light from a straight path.
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Refractive media
The structures of the eye that deflect light: the cornea, aqueous, crystalline lens, and vitreous.
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Refractionist
A person skilled in determining and correcting ocular refractive errors.
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Static refraction
Refraction of the eye when accommodation is at rest or paralyzed.
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Index of refraction
The ratio of the angle made by the incident ray with the perpendicular (angle of incidence) to that made by the emergent ray (angle of refraction). A fixed numerical value associated with a particular material and specific color of light, indicating the extent of light refraction induced by that material, is known as the refractive…
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