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actress
Acts of the Apostles
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actual
actual cash value
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active transport
active transport


noun 
Definition:
 
molecular movement: the movement of substances across cell membranes from low to high concentrations, requiring energy and proteins that act as carriers
Encarta® World English Dictionary [World English Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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