An octet is a group consisting of eight (8) elements. It has several specific meanings: Wikipedia does not have an article with this exact name. ... Wiktionary (a portmanteau of wiki and dictionary) is a multilingual, Web-based project to create a free content dictionary, available in over 150 languages. ... Look up eight in Wiktionary, the free dictionary. ...
Octet rule, a simple chemical theory that states that atoms tend to combine so they each have eight valence electrons.
Another term for Contubernium, the smallest unit within a Roman legion, consisting of eight soldiers with two non-combatant "servants" (actually support troops) attached.
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