IPA: /ˌθɜːrməʊrɪˈmeɪnəns/
KK: /θɜrmoʊrɪˈmeɪnəns/
A property of certain materials that allows them to retain magnetization after being exposed to a magnetic field and then heated.
The thermoremanence of the rock indicates its past exposure to a magnetic field.
Thermoremanence is formed from "thermo-" (from Greek "thermos", meaning heat) and "remanence" (from Latin "remanere", meaning to remain). The word describes the property of a material to retain magnetization after the removal of the magnetic field, particularly in relation to heat.
Think of 'heat' ('thermo-') and 'remaining' ('remanence') to remember that thermoremanence refers to the ability of a material to retain its properties after heat is applied.
No commonly confused words.