Skip to main content
Glite Dictionary
H2O

H2O

16 1.0
A clear liquid with no color, smell, or taste that living things need to live
  • noun
  • /eɪtʃ tu oʊ/
  • Specialized
translation icon : agua
  • Thus, the planting pattern does not significantly affect H2O conductance and transpiration rate of crops.
  • H2O molecules
  • water, or H2O
  • H2O conductance

Examples

  • Two atoms of hydrogen bond with a single atom of oxygen to form H2O, otherwise known as water.

    Snow Day (2000)

  • Okay, water, H2O, just a little liquid refreshment, please.

    Curious George (2006)

  • You need something to drink with all of this food, and H2O is the popular preference.

    Blog text (4)

  • Two-thirds hydrogen by number, H2O is clearly one of the most important substances, ubiquitous in biology and the environment.

    Academic text (1998)

  • We've got glacier, natural, or fizzy water--that's H2O.

    Theodore Rex (1995)

  • H2O is essential for all living organisms; without H2O, life as we know it would not exist.

  • Make sure to drink enough H2O throughout the day to stay hydrated and healthy.

  • Scientists have discovered that the composition of H2O can provide insights into environmental changes.

Synonyms

water
vsH2O
∞ 1.0

A clear liquid you drink to stay alive

names the chemical formula for that liquid rather than the common substance

Surface Forms

H2O singular
H2Os plural

Etymology

H2O is a short scientific code for 'water': the H stands for 'hydrogen' and the O stands for 'oxygen', and the little '2' means 'two' hydrogens join one oxygen, so two H plus one O make 'water'.