Sagitta is a constellation, named after the Latin word for arrow. Sagitta may also refer to: Sagitta (arrowworm), a genus of chaetognaths in the class Sagittoidea Sagitta (geometry), the depth of an arc Sagitta (optics), a measure of the glass removed to yield an optical curve Ligularia sagitta, a plant species Sagitta, one of the otoliths, a structure in the inner ear of some fish N.V. Vliegtuigbouw 013 Sagitta, a Dutch-designed glider that first flew in 1960 USNS Sagitta (T-AK-87) (1944–1959) Versine, a trigonometric function Sagitta, pseudonym of Scottish-German author John Henry Mackay (1864–1993) See also Sagittal, in mathematics Sagittaria. a genus of aquatic plants Sagittarius (disambiguation) Sagit (disambiguation)