1. (Zoology) either of a pair of sensory appendages that arise from the mouthparts of crustaceans and insects. 2. (Zoology) either of a pair of tactile organs arising from the head or anterior end of certain annelids and molluscs. [C19: from French, from Latin palpus a touching]
Convex, meaning curving out or extending outward (compare concave), may refer to: Convex set in mathematics Convex function in mathematics convex polygon a polygon in which no line segment between two points on the boundary ever goes outside the polygon.
1 Convex: any line drawn through the polygon (and not tangent to an edge or corner) meets its boundary exactly twice. 2  As a consequence, all its interior angles are less than 180Â°. 3  Equivalently, any line segment with endpoints on the boundary passes through only interior points between its endpoints.