GIC

noun3

1. •
   (UK) Initialism of gender identity clinic.
2. •
   Initialism of geomagnetically induced current.

   • These geomagnetically induced currents (GICs) can become a hazard when they flow through conducting infrastructure, usually entering and exiting networks where equipment is grounded to Earth. — 2023
3. •
   Initialism of glass ionomer cement.