SAGITTA

sagitta

(noun) any arrowworm of the genus Sagitta

Sagitta

(noun) a small constellation in the northern hemisphere between Cygnus and Aquila and crossed by the Milky Way

Source: WordNet® 3.1

Etymology

Noun

sagitta (plural sagittas)

The keystone of an arch.

(geometry) 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.

(anatomy) The larger of the two otoliths, or ear bones, found in most fishes.

Etymology

Proper noun

Sagitta

(constellation) A small autumn constellation of the northern sky, said to resemble an arrow. It lies between the constellations of Vulpecula and Aquila.

Source: Wiktionary

Sa*git"ta, n. Etym: [L., an arrow.]

1. (Astron.)

Definition: A small constellation north of Aquila; the Arrow.

2. (Arch.)

Definition: The keystone of an arch. [R.] gwitt.

3. (Geom.)

Definition: 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.)

Definition: The larger of the two otoliths, or ear bones, found in most fishes.

5. (Zoöl.)

Definition: 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 Chætognatha.

Source: Webster’s Unabridged Dictionary 1913 Edition