Groundbreaking Aircraft Designed by Lilian Bland
Puzzle 20 of Women Inventors Hard Pack
Question is: Groundbreaking Aircraft Designed by Lilian Bland
and the answer is: MAYFLY
Word Meaning:
MAYFLY — Any of the many fragile insects of the order Ephemeroptera that develop in fresh water and live very briefly as winged adults.
Definitions from Wiktionary.