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positive gloss
positive prescription
positive vetting
positive yield curve
positively
positivism
positron
positron emission tomography
positronium
posole
posology
posse
posse cut
possess
possessed
possession
possession order
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position effect
po·si·tion ef·fect


noun 
Definition:
 
genetic expression variable: a change in a gene's expression depending on its location on the chromosome in relation to other genes
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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