4-Letter Words with E,C,O,R

• a small group of indispensable persons or things

• an organization founded by James Leonard Farmer in 1942 to work for racial equality

• the center of an object

• the central part of the Earth

• the choicest or most essential or most vital part of some idea or experience

• a cylindrical sample of soil or rock obtained with a hollow drill

• the central meaning or theme of a speech or literary work

• (computer science) a tiny ferrite toroid formerly used in a random access memory to store one bit of data; now superseded by semiconductor memories

• the chamber of a nuclear reactor containing the fissile material where the reaction takes place

• a bar of magnetic material (as soft iron) that passes through a coil and serves to increase the inductance of the coil

• remove the core or center from

• large edible mackerel of temperate United States coastal Atlantic waters

• large mackerel with long pointed snout; important food and game fish of the eastern Atlantic coast southward to Brazil