APERTURE
\ˈapət͡ʃə], \ˈapətʃə], \ˈa_p_ə_tʃ_ə]\
Definitions of APERTURE
- 2011 - English Dictionary Database
- 2006 - WordNet 3.0
- 2010 - New Age Dictionary Database
- 1913 - Webster's Revised Unabridged Dictionary
- 1919 - The Winston Simplified Dictionary
- 1920 - A practical medical dictionary.
- 1898 - Warner's pocket medical dictionary of today.
- 1899 - The american dictionary of the english language.
- 1919 - The Concise Standard Dictionary of the English Language
- 1914 - Nuttall's Standard dictionary of the English language
- 1874 - Etymological and pronouncing dictionary of the English language
- 1898 - American pocket medical dictionary
- 1916 - Appleton's medical dictionary
- 1871 - The Cabinet Dictionary of the English Language
- 1790 - A Complete Dictionary of the English Language
Sort: Oldest first
By DataStellar Co., Ltd
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a device that controls amount of light admitted
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an man-made opening; usually small
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a natural opening in something
By Princeton University
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The act of opening.
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The diameter of the exposed part of the object glass of a telescope or other optical instrument; as, a telescope of four-inch aperture.
By Oddity Software
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The act of opening.
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The diameter of the exposed part of the object glass of a telescope or other optical instrument; as, a telescope of four-inch aperture.
By Noah Webster.
By William Dodge Lewis, Edgar Arthur Singer
By Stedman, Thomas Lathrop
By James Champlin Fernald
By Nuttall, P.Austin.
By Stormonth, James, Phelp, P. H.
By Smith Ely Jelliffe
Word of the day
Sporadic Retinoblastoma
- A malignant arising nuclear layer retina that is most primary eye in children. The tumor tends to occur early childhood or infancy present at birth. majority are sporadic, but condition may be transmitted as autosomal dominant trait. Histologic features include dense cellularity, small round polygonal cells, areas of calcification and necrosis. An abnormal pupil reflex (leukokoria); NYSTAGMUS; STRABISMUS; visual loss represent common clinical characteristics this condition. (From DeVita et al., Cancer: Principles Practice Oncology, 5th ed, p2104)