heavier-than-air
adjective
heav·i·er-than-air ˈhe-vē-ər-ṯẖən-ˈer 
: of greater weight than the air displaced
Word History
First Known Use
1903, in the meaning defined above
- counterexamples
- counterexposition
- counterfactual
- counterfactualities
- counterfactualityes
- counterfactualitys
- counterfactuals
- counterfaller
- counterfeisance
- counterfeit
- counterfeited
- counterfeiter
- counterfeiters
- counterfeiting
- counterfeitly
- counterfeitness
- counterfeits
- counterfire
- counterfired
- counterfires
- counterfiring
- counterflashing
- counterfleury
- counterflood
- counterflory