1.having undergone oxidation;
burned powder
2.injured by intense heat (as of fire or the sun);
his cracked, black burned lips
3.treated by heating to a high temperature but below the melting or fusing point;
burnt sienna
4.hardened by subjecting to intense heat;
baked bricks
5.destroyed or badly damaged by fire;
a row of burned houses
6.ruined by overcooking;
she served us underdone bacon and burnt buscuits