From Pluralpedia, the collaborative plurality dictionary
angelmate (n.)
Synonymssysangel, interangel
Applies toheadmates

An angelmate is a headmate that is either partially or fully an angel/divine being in some way, whether that be through memories, identity, etc. and it affects their experience as a headmate. They might have angelic features in the innerworld (if any), such as halos and wings. Can be seen as a role or a metaphysical term depending on how it feels for the headmate.