thermoremanent

adjective

ther·​mo·​rem·​a·​nent ˌthər-mō-ˈre-mə-nənt 

: being or relating to magnetic remanence (as in a rock cooled from a molten state or in a baked clay object containing magnetic minerals) that indicates the strength and direction of the earth's magnetic field at a former time

thermoremanence

ˌthər-mō-ˈre-mə-nən(t)s 

noun

Word History

First Known Use

1951, in the meaning defined above