Definitions

1. adjective

relating to or resembling ether; extremely subtle or refined

“The etheric energies are often associated with spiritual or mystical practices.”

2. noun

a hypothetical substance once thought to be a weightless, odorless, and tasteless substance filling all space, now considered a vacuum or a field of force, such as the electromagnetic field

“In the 19th century, ether was believed to be a fundamental substance, but it was later discredited.”