PENTOXIDE
pentoxide
(noun) an oxide containing five atoms of oxygen in the molecule
Source: WordNet® 3.1
Etymology
Noun
pentoxide (plural pentoxides)
(chemistry) any oxide containing five oxygen atoms in each molecule
Source: Wiktionary
Pen*tox"ide, n. Etym: [Penta- + oxide.] (Chem.)
Definition: An oxide containing five atoms of oxygen in each molecule; as, phosphorus pentoxide, P2O5.
Source: Webster’s Unabridged Dictionary 1913 Edition
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