After taking gold in the halfpipe snowboarding event in each of the past two Olympics, American star Shaun White was in line to add some additional hardware to his trophy case with a medal in the new slopestyle event in Sochi...
Any point of an oval belongs to an arc with a constant radius (shorter or longer), but in an ellipse, the radius is continuously changing. In common speech. In common speech, oval means a shape rather like an egg or an ellipse, which may be two-dimensional or three-dimensional.
For other uses, see Crescent (disambiguation). A crescent shape (/ËkrÉsÉnt/, British English also /ËkrÉzÉnt/) is a symbol or emblem used to represent the lunar phase in the first quarter (the sickle moon), or by extension a symbol representing the Moon itself. It is used as the astrological symbol for the Moon, and hence as the alchemical symbol for Silver.