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n, pl -los
(Aeronautics) a flexible fabric delta wing, originally designed as a possible satellite retrieval vehicle but actually developed in the 1960s as the first successful hang-glider
[C20: after Francis M. Rogallo (1912–2009), the US engineer who designed it]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014