from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Having the characteristics of an acid and a base and capable of reacting chemically either as an acid or a base.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Having the characteristics of both an acid and a base, and capable of reacting as either; amphiprotic.
from the GNU version of the Collaborative International Dictionary of English
- adj. Partly one and partly the other; neither acid nor alkaline; neutral.
from The Century Dictionary and Cyclopedia
- Partly the one and partly the other; neutral.
- In chem., capable, in different reactions, of exhibiting both acid and basic character, as, for example, glycoeoll or amidoacetic acid.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adj. having characteristics of both an acid and a base and capable of reacting as either
From Greek amphoteros, each of two, from amphō, both.(American Heritage® Dictionary of the English Language, Fourth Edition)
From Ancient Greek ἀμφότερος ("each of two"), from ἄμφω ("both"). (Wiktionary)