Heavier-than-air gas Synonyms

Heavier-than-air replaced

Definitions for Heavier-than-air


  • (adjective) relating to an aircraft heavier than the air it displaces

Synonyms for phrase

HG abbreviation

HG is an abbreviation for Heavier-than-air Gas
What does HG stand for?
HG stands for "Heavier-than-air Gas"

Definitions for Gas


  • (noun) boastful speech or writing
  • (noun) language that is impressive-sounding but not meaningful or sincere
  • (noun) active strength of body or mind