poh-LAIR-is, -LAR-, puh-
1. Astronomy. the polestar or North Star, a star of the second magnitude situated close to the north pole of the heavens, in the constellation Ursa Minor: the outermost star in the handle of the Little Dipper.
2. a two-stage U.S. ballistic missile, usually fired from a submerged submarine.
How do you find it? There are so many satellites nowadays that I can’t find Polaris anymore.
— Catherine Anderson , Star Bright , 2009
He sighted through the eyepiece and moved the index arm until Polaris sat squarely on the wire.
— John Vernon , The Last Canyon , 2001
Polaris is a shortening of the Medieval Latin stella polāris meaning “polar star.” The name of the ballistic missile entered English in the 1950s.