Insufficient oxygen Synonyms

Definitions for Insufficient


  • (adjective) not coming up to an expected measure or meeting a particular need
  • (adjective) of a quantity not able to fulfill a need or requirement

IO abbreviation

IO is an abbreviation for Insufficient Oxygen
What does IO stand for?
IO stands for "Insufficient Oxygen"

Definitions for Oxygen


  • (noun) a nonmetallic bivalent element that is normally a colorless odorless tasteless nonflammable diatomic gas; constitutes 21 percent of the atmosphere by volume; the most abundant element in the earth's crust