|a chattering or flighty, light-headed person.|
|a printed punctuation mark (‽), available only in some typefaces, designed to combine the question mark (?) and the exclamation point (!), indicating a mixture of query and interjection, as after a rhetorical question.|
chronobiology chron·o·bi·ol·o·gy (krŏn'ō-bī-ŏl'ə-jē)
The study of the effect of time on biological events, especially repetitive or cyclic phenomena in individuals.