What is the definition of Pneumatic action? | Dictionary.net

PNEUMATIC ACTION

\njuːmˈatɪk ˈakʃən], \njuːmˈatɪk ˈakʃən], \n_j_uː_m_ˈa_t_ɪ_k ˈa_k_ʃ_ə_n]\

Definitions of PNEUMATIC ACTION

1895 - Glossary of terms and phrases

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[Gr.] In an organ, lightens the touch by the liberation of compressed air, which then rushes into a small bellows placed near the key.

1895 - Glossary of terms and phrases
By Henry Percy Smith

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