plagioclasicadj.
/ˌpleɪdʒɪə(ʊ)ˈkleɪzɪk/, /ˌpleɪdʒɪə(ʊ)ˈkleɪsɪk/, U.S. /ˈˌpleɪdʒiəˈkleɪsɪk/, /ˈˌpleɪdʒiəˈkleɪzɪk/ Mineralogy.
= plagioclastic adj.
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the world > the earth > minerals > mineral structure or appearance > [adjective] > cleavage or fracture
beddy1709
splintery1794
conchoid1802
conchoidal1802
graphic1814
axotomous1834
fendillated1853
plagioclastic1869
plagioclasic1913
1913 Proc. Royal Soc. A. 88 47 According to Tschermac's well-known view, all the plagioclasic felspars are either isomorphous mixtures, or solid solutions, of basic anorthite and the acidic felspar albite in various proportions.
1971 Philos. Trans. (Royal Soc.) A. 268 407 It is possible that plagioclasic lherzolites from rift zones of mid-oceanic ridges are residuals of oceanic pyrolite.
1998 Geodinamica Acta 11 1/2 A pelite-greywacke and carbonate unit, with a conspicuous plagioclasic component and a sodic composition.
This is a new entry (OED Third Edition, June 2006; most recently modified version published online March 2022).
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adj.1913- parasternal
- parasternal line
- parasternal region
- parastichy
- parastigma
- parastigmatic
- parastremma
- parasuicidal
- parasuicide
- parasuicides
- paraswimming
- parasymbiont
- parasymbiosis
- parasymbiotic
- parasympathetic
- parasympathetically
- parasympatheticomimetic
- parasympathetics
- parasympatholytic
- parasympathomimetic
- parasynapsis
- parasynaptic
- parasynaptically
- parasyndesis
- parasyndetic