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H2O
/eɪtʃ tuː oʊ/
water
The human body is made up of about 60% H2O.
This means that water is a major component of the human body.
technical
The chemical formula for water, consisting of two hydrogen atoms and one oxygen atom.
In chemistry, H2O is the molecular formula for water.
This formula represents the composition of a water molecule.
H2O is commonly used in scientific and educational contexts to refer to water.
Collocations
H2O moleculea single unit of waterH2O cyclethe movement of water through the environment
Synonyms
Related Phrases
Pro Tip
Scientific Usage
H2O is primarily used in scientific and educational contexts to refer to water.
Gold Rule
Chemical Representation
H2O is the chemical formula for water, consisting of two hydrogen atoms and one oxygen atom.
Word Origin
Derived from the chemical symbols for hydrogen (H) and oxygen (O), representing the molecular composition of water.
Usage Notes
H2O is a widely recognized abbreviation for water in scientific and technical contexts. It is not commonly used in everyday language to refer to water.
Word Breakdown
H
hydrogen atom
element2
two
quantityO
oxygen atom
elementEnglish Dictionary