Relating to or producing sound in an elliptical pattern or manner.
From ellipse (a flattened circle) combined with sonic (relating to sound). This is a modern technical term blending mathematical and acoustic terminology.
This word appears rarely in acoustical engineering when describing how sound waves propagate in elliptical chambers or spaces—it's the kind of specialized vocabulary that exists mostly in physics papers and architectural acoustics.
Complete word intelligence in one call. Free tier — 50 lookups/day.