• 3 defintions found in Acronymia,
• 14 defintions found in AcroLexic: Acronyms and Abbreviations Dictionary:

NACA

National Agricultural Chemicals Association

National Advisory Committee for Aeronautics

National Association of Cost Accountants

AcroLexic: Dictionary of Acronyms and Abbreviations contains 11 more definitions of “NACA”.

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See also