planforms

/ˈplænfɔrmz/
noun
  1. The shape or outline of something as seen from above, especially the shape of an aircraft wing or a building's footprint.
    • The architect studied the planforms of ancient temples to design the new museum.
    • The satellite images showed the planforms of the city's oldest neighborhoods.
    • Engineers tested different wing planforms to improve the airplane's fuel efficiency.
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