invariant section

invariant section
a) Something that must not be removed or modified during redistribution.

I had to include the GNU Manfesto as it was included in an invariant section.

b) A section that will not vary through changing state.

Wikipedia foundation.

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  • conic section — Geom. a curve formed by the intersection of a plane with a right circular cone; an ellipse, a circle, a parabola, or a hyperbola. Also called conic. [1655 65] * * * Any two dimensional curve traced by the intersection of a right circular cone… …   Universalium

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