Is “Polar” a Scrabble word?
Yes
POLAR
Valid in at least one Scrabble dictionary
Valid in these dictionaries
SOWPODS / CSW
Scrabble UK & International
TWL / NWL
Scrabble North America
Large English Dictionary
General English word list
Meaning of Polar
/ˈpəʊ̯lə(ɹ)/
noun
1.The line joining the points of contact of tangents drawn to meet a curve from a point called the pole of the line.
adjective
1.Of or having a pole or polarity.
2.Of, relating to, measured from, or referred to a geographic pole (the North Pole or South Pole); within the Arctic or Antarctic circles.
3.(space sciences) Of an orbit that passes over, or near, one of these poles.