fuzzy sphere
noncommutative space (C*-algebra) generated by hermitian su(2) representations on an N-dimensional Hilbert space; as N → ∞, this converges to the commutative sphere (the algebra of spherical harmonics)
en-GB/ˈfʌzɪ sˈfɪə/
en-US/ˈfʌzi ˈsfɪɹ/