SynentognathiSyn`en*tog"na*thi\, n. pl. [NL., fr. Gr. sy`n with + 'ento`s within + gna`qos jaw.] (Zo["o]l.) An order of fishes, resembling the Physoclisti, without spines in the dorsal, anal, and ventral fins. It includes the true flying fishes.
|order of fishes having spineless fins; needlefishes; sauries; flying fishes; halfbeaks|
|a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison.|
|a chattering or flighty, light-headed person.|