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intermix
intermodal
intermodulation
intermontane
intermural
intern
internal
internal audit
internal clock
internal-combustion engine
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internal clock
in·ter·nal clock (plural in·ter·nal clocks)


noun 
Definition:
 
1. clock within machine: a clock within a machine such as a computer, that may control some of the functions of the machine
2. biology 
Same as  biological clock
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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