polestar

pole·star

 (pōl′stär′)

n.

1. See Polaris.

2. A guiding principle.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

pole•star

(ˈpoʊlˌstɑr)

n.

1. Polaris.

2. something that serves as a guiding principle.

[1545–55]

Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

Thesaurus

Noun

1.

polestar - the brightest star in Ursa Minor; at the end of the handle of the Little Dipper; the northern axis of the earth points toward it North Star, polar star, Polaris, pole star Little Bear, Ursa Minor - a constellation outside the zodiac that rotates around the North Star Little Dipper, Dipper - a cluster of seven stars in Ursa Minor; at the end of the dipper's handle is Polaris

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