stridore significa in inglese

backlash [backlashes]▼(jarring motion in badly fitting machinery)
noun
[UK: ˈbæk.læʃ] [US: ˈbæk.læʃ]

shrill [shriller, shrillest]▼(high-pitched and piercing)
adjective
[UK: ʃrɪl] [US: ˈʃrɪl]