aero·chem·i·cal | \¦¦er-ō-¦ke-mi-kəl\

Definition of aerochemical 

: utilizing the projection of chemical warfare agents by aircraft an aerochemical attack

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First Known Use of aerochemical

1922, in the meaning defined above

History and Etymology for aerochemical

aero- + chemical entry 1

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The first known use of aerochemical was in 1922

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