다른 원소나 원자단과 결합하여 산소 원자 두 개를 포함하는 화학 화합물.
A chemical compound that contains two atoms of oxygen combined with another element or radical.
예문:
"Carbon dioxide is a major greenhouse gas contributing to global warming."
"Titanium dioxide is commonly used as a white pigment in paints and sunscreens."
"Sulfur dioxide is released into the atmosphere primarily through the burning of fossil fuels."