10 letters · 14 points in Scrabble
noun a property of polygons: the property of having equal sides and equal angles
noun the quality of being characterized by a fixed principle or rate
originBorrowed from Middle French regularite, from Old French regularite, from Late Latin rēgulāritās, rēgulāritātem, from rēgulāris; see regular. By surface analysis, regular + -ity.
Etymology from Wiktionary, CC BY-SA 3.0