an allotrope of iron that is nonmagnetic and exists between 910°C and 1400°C
gamma iron in American English
noun
Metallurgy
an allotrope of iron, stable between 910°C and 1400°C and having a face-centered cubic lattice
Word origin
[1895–1900]This word is first recorded in the period 1895–1900. Other words that entered Englishat around the same time include: calling card, cutback, flamenco, frame of reference, freewheel