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octant
octapeptide
octavalent
octave
octave coupler
octavo
octennial
octet
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October
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octahedron
oc·ta·he·dron [ òktə hdrən ] (plural oc·ta·he·drons or oc·ta·he·dra [ òktə hdrə ])


noun 
Definition:
 
8-sided, 3-dimensional figure: a three-dimensional geometric figure formed of eight faces

oc·ta·he·dral adjective
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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