A variant or alternate spelling of convertiplane; an aircraft combining airplane and helicopter capabilities.
Convert + -o- (connecting vowel variant) + plane. An alternative formation to convertiplane, though convertiplane is the more standard technical term.
In aeronautics and engineering jargon, multiple variants for the same concept often emerge before standardization occurs. 'Convertoplane,' 'convertaplane,' and 'convertiplane' all appeared in mid-20th century literature before 'convertiplane' became dominant.
Complete word intelligence in one call. Free tier — 50 lookups/day.