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tetartohedry
tetartohedry n. 
/tɛˌtɑːtə(ʊ)ˈhiːdri/, /tɛˌtɑrdoʊˈhidri/ = tetartohedrism n.
Brit. /tᵻˌtɑːtə(ʊ)ˈhiːdri/
, /tᵻˌtɑːtə(ʊ)ˈhiːdri//tɛˌtɑːtə(ʊ)ˈhiːdri/U.S. /təˌtɑrdoʊˈhidri/
, /təˌtɑrdoʊˈhidri//tɛˌtɑrdoʊˈhidri/ΘΚΠ
the world > matter > chemistry > crystallography (general) > crystal (general) > specific crystal forms > [noun] > tetartohedrism
tetartohedrism1854
tetartohedry1864
1864 H. Watts Dict. Chem. II. 144 Tetartohedry. Quartz affords a remarkable example of a combination in which only one-fourth of the possible faces are present.
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