English noun: atomic number 8 | |||
1. | atomic number 8 (substance) 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 | ||
Synonyms | O, oxygen | ||
Broader (hypernym) | chemical element, element, gas | ||
Narrower (hyponym) | liquid oxygen, LOX | ||
Substance meronym | air, H2O, ozone, water | ||