Dictionary.com

lighter-than-air

[ lahy-ter-thuhn-air ]
/ ˈlaɪ tər ðənˈɛər /
Save This Word!

adjective Aeronautics.
(of an aircraft) weighing less than the air it displaces, hence obtaining lift from aerostatic buoyancy.
of or relating to lighter-than-air craft.
QUIZ
CUDDLE UP! A COZY QUIZ ON FALL WORDS HAS ARRIVED
If autumn is your ideal season, spice up your repertoire of "fall" vocabulary with this quiz on some warm and vivid descriptive words for the season.
Question 1 of 10
Which of the following words means “to make a crackling sound; crackle”?
Meet Grammar CoachWrite or paste your essay, email, or story into Grammar Coach and get grammar helpImprove Your Writing
Meet Grammar CoachImprove Your Writing
Write or paste your essay, email, or story into Grammar Coach and get grammar help

Origin of lighter-than-air

First recorded in 1900–05
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

How to use lighter-than-air in a sentence

British Dictionary definitions for lighter-than-air

lighter than air

adjective (lighter-than-air when prenominal)
having a lower density than that of air
of or relating to an aircraft, such as a balloon or airship, that depends on buoyancy for support in the air
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
FEEDBACK