ˈhyüslə(r)- noun
Usage: usually capitalized H
Etymology: after Conrad Heusler 19th century German mining engineer and chemist
1. : a magnetic alloy composed of the nonmagnetic metals copper, manganese, and tin approximately in the proportions Cu 2 MnSn
2. : any similar magnetic alloy (as one in which tin is replaced by aluminum, arsenic, antimony, bismuth, or boron, or copper is replaced by silver)