[cathexis]

Ether

1. A C-O-C chemical compound used as a solvent in chemistry that
has a penchant for becoming unstable and having increased
flammability especially after it's expiration date.

2. An anesthesia agent used frequently through the 1960s in the US.
Ether's use in Surgery was discontinued as a result of it's acute
flammability. Other, non-flammable, agents were developed. The
drape erected in the OR between the anesthesiologist and the surgeon
was originally used to prevent a spark caused by surgical equipment
from coming in contact with the flammable anesthetic. The original
name for the drape was the "ether curtain."

3. Ether(s) archaic definition was a term used pertaining to the upper
atmosphere or something traveling through the air, e.g. a scent or
spirit being or traveling through the ethers. A mystical version of
floating through the air.
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