“That which lies evenly between its extreme points.” Euclid. “The shortest line between two points.” Chauvenet. “A line which has the same direction through its whole length.” Newcomb.- Euclid. See also: Straight
“That which lies evenly between its extreme points.” Euclid. “The shortest line between two points.” Chauvenet. “A line which has the same direction through its whole length.” Newcomb.- Euclid. See also: Straight