Definitions

1. adjective

Relating to or denoting a process in which two or more substances combine to form a single product, especially in the formation of a metal alloy.

“The peritectic reaction between the two metals resulted in the creation of a new, stronger alloy.”

2. noun

A peritectic reaction or the substance formed by such a reaction.

“The peritectic was a key component in the development of the new metal alloy.”