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orthogonal matrix
orthogonal projection
orthograde
orthographic
orthographic projection
orthography
orthomorphic
orthopaedic
orthopaedics
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orthopedics
orthophosphate
orthophosphoric acid
orthopsychiatry
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orthovoltage
or·tho·volt·age [ àwrthō vṓltij ]


noun 
Definition:
 
radiation for treating cancer: medium-voltage radiation energy used in the treatment of cancer
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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