pearlite

noun

pearl·​ite ˈpər(-ə)-ˌlīt 

: the lamellar mixture of ferrite and cementite in slowly cooled iron-carbon alloys occurring normally as a principal constituent of both steel and cast iron

pearlitic

ˌpər-ˈli-tik 

adjective

Example Sentences

Recent Examples on the Web

For filling your bed, Wied suggests using a third topsoil, a third compost, and a third drainage material such as pearlite or vermiculite. —Joanne Kempinger Demski, Milwaukee Journal Sentinel, 1 Apr. 2021

Word History

Etymology

French perlite, from perle pearl

First Known Use

1888, in the meaning defined above