| per- | |
| —prefix | |
| 1. | through: pervade |
| 2. | throughout: perennial |
| 3. | away, beyond: perfidy |
| 4. | completely, throughly: perplex |
| 5. | (intensifier): perfervid |
| 6. | indicating that a chemical compound contains a high proportion of a specified element: peroxide; perchloride |
| 7. | indicating that a chemical element is in a higher than usual state of oxidation: permanganate; perchlorate |
| 8. | (not in technical usage) a variant of peroxy- : persulphuric acid |
| [from Latin per through] | |
| any of a class of chemical compounds having the general formula ROH, where R represents an alkyl group and ?OH a hydroxyl group |
| a neutral crystalline substance, C2H7NO3S, obtained from bile |
per- pref.
Thoroughly; completely; intensely: perfuse.
Containing an element in its highest oxidation state: perchloric acid.
Containing a large or the largest possible proportion of an element: peroxide.
Containing the peroxy group: peracid.