adj.
Pronunciation: ˌ ā - ˌ pir- ē - ' ä-dik
Function: adjective
Date: 1879
1 : of irregular occurrence : not periodic < aperiodic floods>
2 : not having periodic vibrations : not oscillatory
– ape · ri · od · i · cal · ly \ -di-k( ə -)l ē \ adverb
– ape · ri · o · dic · i · ty \ - ē - ə - ' di-s ə -t ē \ noun