preadmission
Pre`ad*mis"sion, n. Defn: Lit., previous admission; specif. (Engin.), Defn: admission, as of steam, to the engine cylinder before the back stroke is completed, thus increasing the cushioning.
Pre`ad*mis"sion, n. Defn: Lit., previous admission; specif. (Engin.), Defn: admission, as of steam, to the engine cylinder before the back stroke is completed, thus increasing the cushioning.