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1. Of or relating to the number eight.
2. Consisting of eight members or of groups containing eight.
n. pl. oc·to·nar·ies
A group or set of eight.
relating to or based on the number eight
n, pl -naries
1. (Poetry) prosody a stanza of eight lines
2. a group of eight
[C16: from Latin octōnārius, from octōnī eight at a time]
a stanza of eight lines; an octave. — octonary, adj.See also: Verse