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lighter-than-air

   Also found in: Acronyms, Wikipedia 0.02 sec.
light·er-than-air (ltr-n-âr)
adj.
Having a weight less than that of the air displaced. Used of certain aircraft.
ThesaurusLegend:  Synonyms Related Words Antonyms
Adj.1.lighter-than-air - relating to a balloon or other aircraft that flies because it weighs less than the air it displaces
aircraft - a vehicle that can fly
light - of comparatively little physical weight or density; "a light load"; "magnesium is a light metal--having a specific gravity of 1.74 at 20 degrees C"


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1 -- 2) Above, Shae Kellogg, 13, of Amargosa Creek Middle School and Dalia Navarro, 13, of Desert Willow School look inside the hot-air balloon of Stephen Langjahr, a professor of anatomy and physiology at AVC in the Before the Wright Brothers, Lighter-than-Air Flight workshop at the 2007 Bohn-Meyer Math and Science Odyssey at Antelope Valley College.
UP, UP AND AWAY AT A.V. SCIENCE FAIR by Daily News (Los Angeles, CA)
WINGS OF CHANGE is more than just a focus on jumbo jets, however: it follows aviation developments through the end of the 20th century, from jets to private aircraft, lighter-than-air flight, and more.
Wings of Change by Donovan, Diane C. / MBR Bookwatch
Each poem is no longer than a page or two, but all have an indefinable lighter-than-air quality that lends a whispered, lingering impression upon one's consciousness.
The Hope of the Air by Hogan, Betsy L. / Reviewer's Bookwatch
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