Definition of "aviation" [a•vi•a•tion]

• The operation of aircraft. (noun)
• The design, development, and production of aircraft. (noun)
• Military aircraft. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Now, this is an unprecedented effort on the part of the Department of Transportation, on the part of industry and on the part of labor and others to work together to identify best practices across all modes that should be incorporated into contingency response plans, similar to what we see in the aviation community through what they call the aviation security contingency plan."
• "Russia never owned a dedicated aircraft carrier until the cold war was all but over, rather owned what they called aviation cruisers - or ships with long range missiles that also carried lots of helicopters."
• "If he gets interested in aviation, we can taylor the curriculum to his interests immediately."