vbl. sb. [f. CORE sb.1 or v. + -ING1.] The action of the verb CORE; concr. a piece cored out. False coring (in Founding): the use of false cores: see CORE sb.1 8.

1

1866.  Blackmore, Cradock Nowell, lvii. (1883), 397. He had cut himself a good broad coring from the inside of the mowana-tree.

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1879.  Cassell’s Techn. Educ., IV. 262/2. Should there be deep indentations … the caster has to resort to a process called false coring.

3