Definition of halfbeak
: any of various narrow-bodied fishes of warm waters that have an elongated lower jaw and are grouped with the flying fishes (family Exocoetidae) or placed in their own family (Hemiramphidae)
First Known Use of halfbeak
Seen and Heard
What made you want to look up halfbeak? Please tell us where you read or heard it (including the quote, if possible).