A core sample removed from an ice sheet, most commonly from the polar ice caps of Antarctica, Greenland or from high mountain glaciers elsewhere, the properties of which can be used to reconstruct a climatic record of a given area.

Used other than figuratively or idiomatically: see inner, core.

plural of core inflation

a dense core found in molecular clouds which lead to the formation of stars

(electrical) Energy wasted by hysteresis or eddy currents in the core of an armature, transformer, etc.

plural of core eudicot

(botany) A plant or taxonomic grouping that is within the clade core eudicots.

A device used to remove a cylinder-shaped sample of material for examination

The long cylinder of material obtained by use of a core drill

(intransitive, computing) To generate a core dump. / (slang, computing) To ramble pointlessly at length; especially used in apology