from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Describing compounds containing the most highly oxidized state of chlorine
from the GNU version of the Collaborative International Dictionary of English
- adj. Pertaining to, or designating, the highest oxygen acid (HClO4), of chlorine; -- called also hyperchloric.
from The Century Dictionary and Cyclopedia
- Noting an acid (HClO4), a syrupy liquid obtained by decomposing potassium perchlorate by means of sulphuric acid.
Sorry, no etymologies found.