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option account
option buyer
option contract
option elasticity
option income fund
option premium
option price
option seller
option series
option writer
optional
options on physicals
opto-
optoelectronics
optometrist
optometry
optophone
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OR (1)
OR


noun 
Definition:
 
Boolean operator: a binary operator in Boolean algebra whose result is true if one or both of its operands are true and false otherwise.
See also  AND
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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