ˈdīəlij noun
( -s )
Etymology: French, from Greek diallagē change, from diallag-, aorist stem of diallassein to interchange, exchange, change, from dia- + allassein to change, from allos other — more at else
: a dark green or bronze-colored laminated pyroxene common in certain igneous rocks (hardness 4, specific gravity 3.2-3.35)
• di·al·lag·ic |dīə|lajik adjective