American Dictionary
Define dictionary terms easily — search for "example", "dictionary", "language", or "word" in our powerful online English dictionary.
Define dictionary terms easily in our powerful online English dictionary.
Searching for...
No matching words found
Try a different search term or browse the dictionary
a technology that uses sound to scare birds away from crops, airports etc
Nicknamed a sonic net, or sonic scarecrow, it works by beaming a noise signal in a targeted frequency range that makes it hard for birds to hear.
