The word "Dioxids" is spelled with two syllables: di-o-xids. The first syllable, "di," is pronounced as "dɪ," and the second syllable, "oxids," is pronounced as "ɑksɪdz." The correct spelling of the word is actually "dioxides," which refers to a compound containing two oxygen atoms bound to a central element. The proper use and spelling of scientific terms and jargon is important to maintain accuracy in communication within the scientific community.