diallage
noun
di·al·lage
ˈdīəlij
plural -s
: a dark green or bronze-colored laminated pyroxene common in certain igneous rocks (hardness 4, specific gravity 3.2–3.35)
diallagic adjective
¦dīə¦lajik
Word History
Etymology
French, from Greek diallagē change, from diallag-, aorist stem of diallassein to interchange, exchange, change, from dia- + allassein to change, from allos other
First Known Use
1805, in the meaning defined above