二に酸さん化か炭たん素そ吸きゅう収しゅう源げんMeaningsNoun1. carbon sink; carbon dioxide sink; CO2 sinkKanji used二two酸acid化transformation炭charcoal素elementary吸suck収obtain源sourceComposed of二に酸さん化か炭たん素そcarbon dioxide; CO2Noun吸きゅう収しゅうabsorption; suction; attractionNoun源げんsource; originSuffix