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orthogonal projection
orthograde
orthographic
orthographic projection
orthography
orthomorphic
orthopaedic
orthopaedics
orthopedic
orthopedics
orthophosphate
orthophosphoric acid
orthopsychiatry
orthopteran
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orthovoltage therapy
or·tho·volt·age ther·a·py


noun 
Definition:
 
radiation treatment: cancer treatment using medium-voltage radiation
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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