a hard siliceous or calcareous deposit precipitated from mineral springs

solid material which has been sintered, especially a mixture of iron ore and other materials prepared for smelting

typical blast-furnace burdens are 80% sinter, 20% ore

(with reference to a powdered material) coalesce into a solid or porous mass by means of heating (and usually also compression) without liquefaction

when the moisture is removed from the slurry the powder compact is sintered

metal powders sinter together under pressure