1. distance between the tips of the wings (as of a bird or insect) when fully extended;
2. linear distance between the extremities of an airfoil; [syn: wingspan, wingspread]
WordNet (r) 3.0 (2006):
wingspread
n 1: distance between the tips of the wings (as of a bird or
insect) when fully extended
2: linear distance between the extremities of an airfoil [syn:
wingspan, wingspread]