trepidatio angolul

fear / alarm▼noun

nervousness / trepidation▼noun

oscillation [oscillations]▼noun
[UK: ˌɒ.sɪ.ˈleɪʃ.n̩] [US: ˌɑː.sə.ˈleɪʃ.n̩]

physical trembling / twitching▼noun