from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A compound having five atoms of oxygen combined with another element or radical.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. any oxide containing five oxygen atoms in each molecule
from the GNU version of the Collaborative International Dictionary of English
- n. An oxide containing five atoms of oxygen in each molecule.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. an oxide containing five atoms of oxygen in the molecule
Sorry, no etymologies found.