[an-ahy-uh
n] 
| 1. | a negatively charged ion, as one attracted to the anode in electrolysis. |
| 2. | any negatively charged atom or group of atoms (opposed to cation ). |
n going up (prp. of aniénai to go up), equiv. to an- an- 3 + -i- go + -ōn prp. suffix [an-ahy-on-ik] , adjective | an·i·on (ān'ī'ən) n. A negatively charged ion, especially the ion that migrates to an anode in electrolysis. [From Greek, neuter present participle of anienai, to go up : ana-, ana- + ienai, to go; see ei- in Indo-European roots.] an'i·on'ic (-ŏn'ĭk) adj., an'i·on'i·cal·ly adv. |
anion an·i·on (ān'ī'ən)
n.
A negatively charged ion, especially one that migrates to the anode in electrolysis.
| anion (ān'ī'ən) Pronunciation Key
An ion with net negative charge, having more electrons than protons. In electrolysis, anions migrate to a positively charged anode. Compare cation. |