plural of elevon; multiple control surfaces on aircraft that combine elevator and aileron functions.
From elevon (a portmanteau) plus -s (plural marker). A modern aeronautical term created by blending two older terms.
The Space Shuttle used elevons on its wings instead of traditional control surfaces—this unique design helped it maneuver in the thin upper atmosphere.
Complete word intelligence in one call. Free tier — 50 lookups/day.