Ethereal vs. Etheric — What's the Difference?

Extremely delicate and light in a way that seems not to be of this world

Any of a class of organic compounds in which two hydrocarbon groups are linked by an oxygen atom.

(of a solution) having diethyl ether as a solvent

A volatile, highly flammable liquid, C4H10O, derived from distilling ethyl alcohol with sulfuric acid, used as a reagent and solvent, and formerly used as an anesthetic. Also called diethyl ether, ethyl ether.

Extremely light or delicate

The regions of space beyond the earth's atmosphere; the heavens.

Of the celestial spheres; heavenly.

The element believed in ancient and medieval civilizations to fill all space above the sphere of the moon and to compose the stars and planets.

Spiritual or otherworldly.

(Physics) An all-pervading, infinitely elastic, massless medium formerly postulated as the medium of propagation of electromagnetic waves.

(Chemistry) Of or relating to ether.

Of or pertaining to the ether all-pervading medium; composed of ether; inhabiting the ether.

Pertaining to the (real or hypothetical) upper, purer air, or to the higher regions beyond the earth or beyond the atmosphere.

Pertaining to the immaterial realm, as symbolically represented by, or (in earlier epochs) conflated with, such atmospheric and extra-atmospheric concepts.

Consisting of ether; hence, exceedingly light or airy; tenuous; spiritlike; characterized by extreme delicacy, as form, manner, thought, etc.

(organic chemistry) To do with diethyl ether.

Pertaining to the hypothetical upper, purer air, or to the higher regions beyond the earth or beyond the atmosphere; celestial; as, ethereal space; ethereal regions.

Consisting of ether; hence, exceedingly light or airy; tenuous; spiritlike; characterized by extreme delicacy, as form, manner, thought, etc.

Pertaining to, derived from, or resembling, ether; as, ethereal salts.

Characterized by lightness and insubstantiality; as impalpable or intangible as air;

Of or containing or dissolved in ether;

Of heaven or the spirit;

Characterized by unusual lightness and delicacy;