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orthophosphoric acid
orthopsychiatry
orthopteran
orthopterous
orthoptics
orthopyroxene
orthorhombic
orthoscopic
orthostatic
orthotics
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orthovoltage
orthovoltage therapy
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orthostatic
or·tho·stat·ic [ àwrthə státtik ]


adjective 
Definition:
 
relating to standing upright: associated with or caused by standing in an upright position
orthostatic hypotension
orthostatic intolerance
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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