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.

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

plural of sagitta

plural of sagitta

(anatomy) Relating to or denoting the suture on top of the skull which runs between the parietal bones in a front to back direction.

(astronomy) A constellation of the zodiac supposedly shaped like a centaur who is an archer.

Someone with a Sagittarius star sign

a centaur / (heraldry) Sagittarius / (archaic) an archer

plural of sagittary

(anatomy) A ridge of bone running lengthwise along the midline of the top of the skull (at the sagittal suture) in many mammals and primates