peritectic

[ per-i-tek-tik ]
/ ˌpɛr ɪˈtɛk tɪk /

adjective Physical Chemistry.

of or noting the phase intermediate between a solid and the liquid that results from the melting of the solid.

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Origin of peritectic

1920–25; peri- + Greek tēktikós able to dissolve, akin to tḗkein to melt
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020