Grade 6

oxygen

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(ox-y-gen) 3 syllables

Definition

symbolO; atomic number8; a colorless odorless gaseous element constituting about onefifth of the volume of the atmosphere and present in a combined state in nature

Example Sentence

Oxygen is a chemical element with the symbol O and atomic number 8.

Synonyms

part of air; odorless gas; colorless gas

Antonyms

solid

Rhymes

  • oxygen