stridula significa in inglese

shrill [shriller, shrillest]▼(having a shrill voice)
adjective
[UK: ʃrɪl] [US: ˈʃrɪl]

squeal [squealed, squealing, squeals]▼(to scream a high-pitched squeal)
verb
[UK: skwiːl] [US: ˈskwiːl]