the pointed end of an arrow 箭头,箭镞 ■a decorative device resembling this 箭头状饰物 ■(Geometry)a quadrilateral in which one internal angle is more than 180° (几何)一内角大于180°的四边形
a Eurasian water plant with arrow-shaped leaves above the water surface 慈菇
Genus Sagittaria, family Alismataceae: several species, in particular the common European S. sagittaria 慈菇属,泽泻科: 数种,尤指常见的欧洲慈菇