vortilon

== English == === Etymology === (This etymology is missing or incomplete. Please add to it, or discuss it at the Etymology scriptorium.) === Pronunciation === IPA(key): /ˈvɔː(ɹ)tɪlɒn/ === Noun === vortilon (plural vortilons) A small attachment mounted under the wing of an aeroplane to induce vortices to aid stability in flight.