1. shaped like a spearhead; having a pointed apex with two lobes or projections at the base
Usage: chiefly botanical and zoological

Examples

• The hastate leaves of the plant were easily identified by their distinctive spearhead shape.
• Botanists noted the hastate form of the leaf margins in their field guide.
• The hastate outline of the insect's wings helped classify it within the species.
• A hastate leaf has a pointed tip with two small lobes spreading outward at the base.