A small box / (botany) A capsule in which the lid separates from the top of the fruit to release the seeds; a pyxidium / A nautical compass

(astronomy) A spring constellation of the southern sky, said to resemble the compass of a ship. It is associated with the larger Argo Navis, although it was never officially part of that constellation.

plural of pyxie

Archaic form of pixie (“magical creature”).