Definify.com
Webster 1913 Edition
Sagitta
‖
Sa-git′ta
,Noun.
[L., an arrow.]
1.
(Astron.)
A small constellation north of Aquila; the Arrow.
2.
(Arch.)
The keystone of an arch.
[R.]
Gwilt.
3.
(Geom.)
The distance from a point in a curve to the chord; also, the versed sine of an arc; – so called from its resemblance to an arrow resting on the bow and string.
[Obs.]
4.
(Anat.)
The larger of the two otoliths, or ear bones, found in most fishes.
5.
(Zool.)
A genus of transparent, free-swimming marine worms having lateral and caudal fins, and capable of swimming rapidly. It is the type of the class Chaetognatha.