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 (pə-rŏvz′kīt′, -rŏfs′-)
1. A relatively rare yellow, brown, or black mineral, CaTiO3, sometimes containing rare-earth elements such as lanthanum.
2. Any of various oxides having a crystal structure similar to that of this mineral and that can be found in many superconducting ceramic materials and in electrodes in fuel cells.

[After Count Lev Alekseyevich Perovski (1792-1856), Russian mineralogist.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(Minerals) a yellow, brown, or greyish-black mineral form of calcium titanate with some rare-earth elements, which is used in certain high-temperature ceramic superconductors
[C19: named after Count Lev Alekseevich Perovski (1792–1856), Russian statesman]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(pəˈrɒf skaɪt, -ˈrɒv-)

1. a rare titanate mineral, CaTiO3, forming yellow, brown, or black cubic crystals.
2. any of a family of superconducting ceramics with an atomic structure resembling that of this mineral.
[1835–45; < German Perowskit, after Count Lev Alekseevich Perovskiĭ (1792–1856), Russian statesman; see -ite1]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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The perovskite solar cells have high efficiency, low cost and a simple manufacturing process.
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Cobaltites REBa[Co.sub.2][O.sub.6-[delta]], where REis a rare earth metal, with the double perovskite structure have attracted great attention in the past decade due to their unique properties such as high oxide ion and electronic conductivity as well as very promising activity as cathodes in IT SOFCs [1-5].