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Speculum humanae salvationis
Book article from: The Oxford Dictionary of Art
Speculum humanae salvationis ( The Mirror of Human...of them illustrated. The illustrated Speculum is normally arranged so that on opening...types on the right. In about 1465 the Speculum was issued as a block book, which enjoyed...
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speculum
Book article from: A Dictionary of Zoology
speculum In birds, a well-defined patch of coloured feathers, often iridescent, found on the secondaries or secondary coverts (e.g. of many Anatidae, particularly Anas species).
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speculum metal
Book article from: A Dictionary of Astronomy
speculum metal An alloy of tin and copper used for telescope mirrors until the mid-19th century, when it was replaced by silvered glass mirrors. Its reflectivity is only approximately 66%, and must be repolished when it tarnishes.
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Vincent of Beauvais
Book article from: The Concise Oxford Dictionary of the Christian Church
...the vast popular encyclopaedia, the Speculum Maius . A Dominican , he may have been...into close contact with Louis IX . The Speculum Maius , conceived and partly written...completed c. 1259 in three sections, the Speculum Naturale , the Speculum Doctrinale...
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Lieberkühn, Johannes Nathanael
Dictionary entry from: Complete Dictionary of Scientific Biography
...It consisted of a small, concave, highly polished silver speculum, later termed a Lieberk ü hn, that provided intense...xFC; hn ’ s revival of interest in it that the speculum arrangement on this microscope received his name. Lieberk...
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bivalve
Book article from: A Dictionary of Nursing
bivalve ( by -valv) adj. consisting of or possessing two valves or sections. b. cast a plaster cast that is cut into anterior and posterior sections to monitor pressure beneath the cast. b. speculum a vaginal speculum that has two blades.
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Edmund, St, of Abingdon
Book article from: The Concise Oxford Dictionary of the Christian Church
...commemorated in St Edmund Hall. He wrote a devotional treatise, Speculum Religiosorum ; the vulgate Latin text, which is a translation...of the Anglo-Norman versions and is commonly known as the Speculum Ecclesie , circulated widely. Feast day, 16 Nov.
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spec.
Book article from: A Dictionary of Astronomy
spec. Abbr. for speculum, used to denote the mirror of a reflecting telescope. The name derives from the time when telescope mirrors were made of speculum metal .
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Draper, Henry
Dictionary entry from: Complete Dictionary of Scientific Biography
...Hospital, and began preparations for grinding and polishing a speculum mirror. This tedious task occupied his spare time until the...Herschel in June 1860 and was advised that glass was preferable to speculum in ease of figuring, lightness, and brightness when silvered...
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Encyclopedism
Dictionary entry from: New Dictionary of the History of Ideas
...liberal arts. The most famous of the medieval works was the Speculum maius (The greater mirror), compiled between 1245 and 1260...nature, of history, and of doctrine. The last book, the Speculum doctrinale (Mirror of doctrine), covered the liberal and...
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