[ul.tra.ma.rine] n [ML ultramarinus coming from beyond the sea, fr. L ultra- + mare sea--more at marine] (1598) 1 a (1): a blue pigment prepared by powdering lapis lazuli (2): a similar pigment prepared from kaolin, soda ash, sulfur, and charcoal b: any of several related pigments
2: a vivid blue
[2]ultramarine adj (1652): situated beyond the sea