perovskite

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pe·rovsk·ite

 (pə-rŏvz′kīt′, -rŏfs′-)
n.
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.]

perovskite

(pɛˈrɒvskaɪt)
n
(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]

pe•rovsk•ite

(pəˈrɒf skaɪt, -ˈrɒv-)

n.
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]