oscillation

Từ điển Oxford Advanced Learner 8th

os·cil·la·tion [oscillation oscillations] BrE [ˌɒsɪˈleɪʃn] NAmE [ˌɑːsɪˈleɪʃn] noun (formal)
1. uncountable, singular a regular movement between one position and another or between one amount and another
•the oscillation of the compass needle
•~ between A and B the economy's continual oscillation between growth and recession
2. countable ~ (between A and B) | ~ (of sth) (against sth) a single movement from one position to another of sth that is oscillating
•the oscillations of the pound against foreign currency
3. uncountable, countable ~ (between A and B) a repeated change between different feelings, types of behaviour or ideas
•his oscillation, as a teenager, between science and art
•Her oscillations of mood frustrated him.

Example Bank:
•the oscillation of a compass needle/of radio waves

• Từ đồng nghĩa / Synonyms:
  cycle, vibration