Easton's Bible Dictionary Castor and Pollux: The "Dioscuri", two heroes of Greek and Roman mythology. Their figures were probably painted or sculptured on the prow of the ship which Luke refers to (Acts 28:11). They were regarded as the tutelary divinities of sailors. They appeared in the heavens as the constellation Gemini. Noah Webster's Dictionary 1. (n.) A fixed star of the second magnitude, in the constellation Gemini. Cf. 3d Castor. 2. (n.) Same as Pollucite. Int. Standard Bible Encyclopedia CASTOR AND POLLUX kas'-ter, pol'-uks. See DIOSCURI; ASTRONOMY. POLLUX pol'-uks. See CASTOR AND POLLUX.

Multi-Version Concordance Pollux (1 Occurrence) Acts 28:11 And after three months we departed in a ship of Alexandria, which had wintered in the isle, whose sign was Castor and Pollux. (KJV WBS NIV)