greenhouse gas

Definitions of greenhouse gas
  1. noun
    a gas that contributes to the greenhouse effect by absorbing infrared radiation
    synonyms: greenhouse emission
    see moresee less
    show 8 types...
    hide 8 types...
    CFC, chlorofluorocarbon
    a fluorocarbon with chlorine; formerly used as a refrigerant and as a propellant in aerosol cans
    CO2, carbon dioxide, carbonic acid gas
    a heavy odorless colorless gas formed during respiration and by the decomposition of organic substances; absorbed from the air by plants in photosynthesis
    HFC, hydrofluorocarbon
    a fluorocarbon emitted as a by-product of industrial manufacturing
    PFC, perfluorocarbon
    a powerful greenhouse gas emitted during the production of aluminum
    sulfur hexafluoride, sulphur hexafluoride
    a colorless gas that is soluble in alcohol and ether; a powerful greenhouse gas widely used in the electrical utility industry
    HCFC, hydrochlorofluorocarbon
    a fluorocarbon that is replacing chlorofluorocarbon as a refrigerant and propellant in aerosol cans; considered to be somewhat less destructive to the atmosphere
    blackdamp, chokedamp
    the atmosphere in a mine following an explosion; high in carbon dioxide and incapable of supporting life
    any one or more chlorofluorocarbons (or related compounds) that are used as an aerosol propellant, organic solvent, or refrigerant
    type of:
    a fluid in the gaseous state having neither independent shape nor volume and being able to expand indefinitely
Word Family

Test prep from the experts

Boost your test score with programs developed by’s experts.

  • Proven methods: Learn faster, remember longer with our scientific approach.
  • Personalized plan: We customize your experience to maximize your learning.
  • Strategic studying: Focus on the words that are most crucial for success.


  • Number of words: 500+
  • Duration: 8 weeks or less
  • Time: 1 hour / week


  • Number of words: 500+
  • Duration: 10 weeks or less
  • Time: 1 hour / week


  • Number of words: 700+
  • Duration: 10 weeks
  • Time: 1 hour / week