arrowhead
/ˈærəʊhed/noun
1
- the pointed end of an arrow箭头, 箭镞。
1.1
- a decorative device resembling this箭头状饰物。
1.2
- Geometry a quadrilateral in which one internal angle is more than 180°【几何】一内角大于180°的四边形。
2
- a Eurasian water plant with arrow-shaped leaves above the water surface慈姑。
2.1
- Genus Sagittaria, family Alismataceae: several species, in particular the common European S. sagittaria.慈姑属, 泽泻科：数种, 尤指常见的欧洲慈姑。