the usu inedible central part of some fruits, e.g. a pineapple; esp the papery parts encasing the seeds in fruit such as apples and pears
the essential, basic, or central part of something, e.g. of an individual, class, or entity
the inmost or most intimate part
honest to the core
the central part of a planet, esp the earth, which has physical properties, e.g. heat conductivity and density, that are different from those of the surrounding parts
a cylindrical portion removed from a mass for inspection; specif such a portion of rock obtained by boring
the part of a nuclear reactor that contains the rods of fuel, e.g. uranium, and in which the energy-producing reaction occurs
a piece of ferromagnetic material, e.g. soft iron, that serves to concentrate and intensify the magnetic field resulting from passing an electric current through a surrounding coil
the part of a mould used for casting metal objects that shapes a depression, cavity, or hole in the object
a small rounded lump of stone, e.g. flint, from which flakes have been struck for making primitive weapons or tools