Definition of amphoteric in English:

amphoteric

Line breaks: ampho|ter¦ic
Pronunciation: /ˌamfəˈtɛrɪk
 
/

adjective

Chemistry
(Of a compound, especially a metal oxide or hydroxide) able to react both as a base and as an acid.
More example sentences
  • Amino acids are amphoteric organic acids that are able to biochemically react with both acids or bases.
  • Proteins can also be amphoteric compounds - a compound that can take on a negative or positive charge depending on the surrounding conditions.
  • Finally, amphoteric detergents have either a positively or negatively charged ion, depending on the pH of the system they are incorporated into.

Origin

mid 19th century: from Greek amphoteros, comparative of amphō 'both', + -ic.

More definitions of amphoteric

Definition of amphoteric in:

Get more from Oxford Dictionaries

Subscribe to remove adverts and access premium resources

Word of the day punctum
Pronunciation: ˈpʌŋ(k)təm
noun
a small, distinct point