The portion of a mold that creates an internal cavity within a casting or that makes a hole in or through a casting.
A piece of ferromagnetic material (e.g., soft iron), inside the windings of an electromagnet, that channels the magnetic field.
The bony process which forms the central axis of the horns in many animals.
The set of feasible allocations that cannot be improved upon by a subset (a coalition) of the economy's agents.
A tiny sample of organic material obtained by means of a fine-needle biopsy.
An atomic nucleus plus inner electrons (i.e., an atom, except for its valence electrons).
A deposit paid by the purchaser of a rebuilt part, to be refunded on return of a used, rebuildable part, or the returned rebuildable part itself.
A disorder of sheep caused by worms in the liver.
Used to designate the main and most diverse monophyletic group within a clade or taxonomic group.
The anatomical core, muscles which bridge abdomen and thorax.
An individual computer processor, in the sense when several processors (called cores or CPU cores) are plugged together in one single integrated circuit to work as one (called a multi-core processor).
The central part of a protein's structure, consisting mostly of hydrophobic amino acids.
A cylindrical sample of rock or other materials obtained by core drilling.
The heart or inner part of a physical thing.
The most important part of a thing or aggregate of things wherever located and whether of any determinate location at all; the essence.
The central fissile portion of a fission weapon.
A hollow cylindrical piece of cardboard around which a web of paper or plastic is wound.
The center or inner part of a space or area.
The central part of a fruit, containing the kernels or seeds.
The inner part of a nuclear reactor, in which the nuclear reaction takes place.
A miner's underground working time or shift.
The material between surface materials in a structured composite sandwich material.
To cut or drill through the core of (something).
To remove the core of an apple or other fruit.
To extract a sample with a drill.
Forming the most important or essential part.
a reservoir built into a metal casting mold to prevent the formation of cavities in the casting as the metal shrinks on cooling.
A platform or stand used to lift or elevate something.
A Manx cat with a showable short tail.
A pipe connecting an individual exhaust port of an internal combustion engine to the muffler, particularly on aircraft.
A strip of webbing joining a parachute's harness to the rigging lines.
A vertical utility conduit, pipe or path between floors of a building for placement of cables (e.g. telephone, networking), or to convey fluids (e.g. gas, water).
Someone or something which rises.
The main body of a bow.
The vertical part of a step on a staircase.