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octad
oc·tad [ ók tàd ] (plural oc·tads)


noun 
Definition:
 
group of eight: a group or series of eight
[Mid-19th century. < Greek oktad-< oktō (see octo-)]

oc·tad·ic [ ok táddik ] 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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