octad
[ok-tad]
/ ˈɒk tæd /
Example Sentences
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The number Eight, or the octad, is the first cube, that is to say, squared in all senses, as a die, proceeding from its base two, an even number; so is man four-square, or perfect.
From Project Gutenberg
From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.