octopole
/ˈɒktə(ʊ)pəʊl/(also octapole) Physics
adjective
Of or relating to an octupole or octupoles; that is an octupole.
noun
= octupole.
Origin
1930s; earliest use found in Proceedings of the Royal Society of London. From octo- + pole, with allusion to the fact that 23 is 8).