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opus anglicanum
opuscule
-or (1)
-or (2)
OR (1)
OR (2)
or (1)
or (2)
OR circuit
OR gate
ora
ora et labora
orach
oracle
oracular
oracy
oral
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opto-
opto-


prefix 
Definition:
 
1. eye, vision
optometry
2. optical
optoelectronics
[< Greek optos "seen, visible"]
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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