Lyman
"Elliptical". As in: Spitfire? Does this refer to plan, section, chord, or Station?
None of those. Elliptical as in elliptical span loading, usually expressed as:
[local lift coefficient (at any spanwise station) times local chord]/ [wing lift coefficient times mean aerodynamic chord] plotted against spanwise station as a decimal fraction of semispan.
Aerodynamicists obtain the span loading they desire by combinations of planform (local chord) local AoA variations (wing twist) and wing camber (no lift angle)
Sorry if you are lost!