0 the chemical symbol for water; used to refer to the substance water:
H2O means that each water molecule contains one oxygen and two hydrogen atoms.
The map shows where you can get some H2O when you're out running.
The more scientists examine H2O, the stranger it starts to seem.
Water is the only substance on Earth whose chemical formula has entered the vernacular. We all know H2O, even if we don’t understand precisely what it means.
Two scientists walk into a bar. One says, "I'll have some H2O."
NOVÉ SLOVÁ
European
May 10, 2021
SLOVO DŇA
Shimmer
H2O
