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1. Extremely light or delicate: "An ant lion ... is lovely, long-bodied like a damselfly, with a pair of ethereal wings" (Jennifer Ackerman).
a. Of the celestial spheres; heavenly.
b. Spiritual or otherworldly.
3. Chemistry Of or relating to ether.

[From Latin aetherius, from Greek aitherios, from aithēr, upper air.]

e·the′re·al′i·ty (-ăl′ĭ-tē), e·the′re·al·ness n.
e·the′re·al·ly adv.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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Through linear drawings and photography, Joan attempts to chart and solidify the ethereality of shadows as quiet markers of the passage of time.
Interestingly, heavenly life is marked by substance and earthly action (they know, are, and do), while the speaker's world is marked by intangible ethereality (we imagine, seem, and dream).
The air, noted for its invisibility and ethereality, is indispensable to life.
(3.) I do not associate the term with otherworldliness or ethereality, which would be inappropriate in this context.
In Rheinmetall/Victoria 8, 2003, a 1961 Italian projector screens artificial snow falling on a pristine 1930s German typewriter--defunct technologies pairing to fabricate ethereality. Since 2007, in scrupulously mocked-up, hugely appealing light-box mise-en-scenes, Graham has guised himself, inter alia, as a well-heeled amateur artist perpetuating Morris Louis's stylistics after his final show, and an old-school jazz drummer thoughtful over a steak supper.
Meant to echo the aesthetic of nearby university buildings, its surface also adds to its ethereality. "The bricks are glazed in magnesium oxide, which lends a dynamic sheen," says the firm's founder, Michael Maltzan.
While ballerinas have an image of thinness, lightness and ethereality, characterized by the technique of pointe shoes, tutu skirts, choreography balance, spinning and great jumps, male dancers must demonstrate strength and agility in their movements in conducting the ballerina in the dance.
It achieves value through its ethereality and tenuousness, the qualities of the romance and irony.
Allis is at his best when closely explicating musical ethereality for tangible meaning; it is a delight to read.
The ethereality of the scenes is enhanced by the pared down modernist stage design.
The practical selfishness that underlies Scarlett's boredom with the historical leads to the other major formal feature of these two specific interjections of history: in both the barbecue talk and Ashley's letter, the historical is fundamentally immaterial, relegated to voices wafting in from another room, or the imprint of the unheard Rebel yell, or the ethereality of Ashley's imaginative vision.
Tan's ethereality makes the San Francisco Ballet principal one of the world's most breathtaking ballerinas, while Sheu is all grounded Graham power.