oxo
A substituent oxygen atom connected to another atom by a double bondA substituent oxygen atom connected to another atom by a double bond.
Meaning
2 senses(in compounds, uncountable)A substituent oxygen atom connected to another atom by a double bond.
(uncountable)The game of noughts and crosses.
Lessons for this word
1 lessons- A1Countable and uncountable nouns — Because it can be uncountable