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double-acting
[ duhb-uhl-ak-ting ]
adjective
- (of a reciprocating engine, pump, etc.) having pistons accomplishing work in both directions, fluid being admitted alternately to opposite ends of the cylinders. Compare single-acting.
- (of a hinge of a door or the like) permitting movement in either direction from the normal, or closed, position.
- having twice the usual effectiveness, strength, use, etc.
double-acting
adjective
- (of a reciprocating engine or pump) having a piston or pistons that are pressurized alternately on opposite sides Compare single-acting
- (of a hinge, door, etc) having complementary actions in opposed directions
Word History and Origins
Origin of double-acting1
Example Sentences
Schug's paper -- titled, "Acetate acts as a metabolic immunomodulator by bolstering T-cell effector function and potentiating antitumor immunity in breast cancer" -- demonstrates a double-acting mechanism for fighting a particularly aggressive, difficult-to-treat form of breast cancer.
The Great Depression coincided with the introduction of packaged double-acting baking powder, and that extra boost countered the fruit’s heavy moisture.
Lots of double-acting baking powder means there’s no need to add salt, and they’ll be lofty with or without eggs, so they can easily be made vegan.
Double-acting baking powder, which is the kind that you'll find in the grocery store, produces bubbles in two ways: when it is mixed with wet ingredients and then when it gets heated.
Most store-bought baking powder is double-acting and contains a blend of salt acids in which some react quickly, in the presence of liquid, and others more slowly, in the presence of heat, i.e., the oven.
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