AOERC [ay·oh·eee·arr·see] n. Arrillaga Outdoor Education and Recreation Center, a newish athletics center which "provides 75,000 square foot of indoor recreation space, a 50-meter outdoor pool, state-of-the-art Climbing Wall and Outdoor Education Center, classroom spaces, locker rooms and showers, fitness center, and three indoor basketball courts."1 *also, var. "new Arrillaga" (circa 2017, due to the proliferation of campus buildings bearing the Arrillaga name.)
1Quoted from facilities description. See: https://recreation.stanford.edu/facilities/aoerc.