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proportional representation
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proplastid
pro·plas·tid [ pr plástid ] (plural pro·plas·tids)


noun 
Definition:
 
plant-cell organ precursor: a small membranous sac found in some plant tissues that develops into a food-producing or storage organ plastid
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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