|a chattering or flighty, light-headed person.|
|a children's mummer's parade, as on the Fourth of July, with prizes for the best costumes.|
|nanosecond (nān'ə-sěk'ənd) Pronunciation Key
One billionth (10-9) of a second.
A billionth of a second.
Note: The term is often used to refer to a very short time: “He missed having an accident by nanoseconds.”