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.
1866. Blackmore, Cradock Nowell, lvii. (1883), 397. He had cut himself a good broad coring from the inside of the mowana-tree.
1879. Cassells Techn. Educ., IV. 262/2. Should there be deep indentations the caster has to resort to a process called false coring.