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optophone
opulent
opuntia
opus
opus anglicanum
opuscule
-or (1)
-or (2)
OR (1)
OR (2)
or (1)
or (2)
OR circuit
OR gate
ora
ora et labora
orach
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option series
op·tion se·ries (plural op·tion se·ries)


noun 
Definition:
 
finance set of similar options: a set of options of the same class, striking price, and maturity
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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