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Sabbatarians

(Encyclopedia) Sabbatarians, persons who insist upon strict observance of Sunday as the Sabbath. Societies promoting Sabbatarian objectives include the Lord's Day Alliance of the United States and…

Amy Lowell: Bath

BathThe day is fresh-washed and fair, and there is a smell of tulips and narcissus in the air.The sunshine pours in at the bath-room window and bores through the water in the bath-tub in…

photon

(Encyclopedia) photonphotonfōˈtŏn [key], the particle composing light and other forms of electromagnetic radiation, sometimes called light quantum. The photon has no charge and no mass. About the…

Sara Teasedale: Hamburg

HamburgThe day that I come home, What will you find to say,— Words as light as foam With laughter light as spray?Yet say what words you will The day that I come home; I shall hear…

toxoplasmosis

(Encyclopedia) toxoplasmosis, infection caused by Toxoplasma gondii, a single-celled parasitic microorganism that can infect most warm-blooded animals but reproduces only in animals of the cat family…

Rolph, John

(Encyclopedia) Rolph, JohnRolph, Johnrŏlf [key], 1793–1870, Canadian physician and politician, b. England. He studied law and medicine in England and served in the Legislative Assembly of Upper…

night blindness

(Encyclopedia) night blindness, inability to see normally in subdued light. It is usually a result of vitamin A deficiency. The rod cells, one of two light-sensitive areas of the retina of the eye,…