technicalia

noun[plural only]2

1. •
   Technical details, especially ones that are tedious or of little interest to nonspecialists; technicalities.

   • Copernicus himself made few observations but was steeped both in the technicalia of astronomical geometry and in the humanistic tradition. — 1995
2. •
   Technical language; jargon.

   • Unusually for such technicalia, rebracketing is a good, solid English word, not Latin or Greek. — 2015