nickings

plural plural-only

(mining) Small coal produced during cutting at the side of the coalface.

Japanese Meaning

露掘面での切断作業中に生成される、小さなサイズの石炭（小煤塊）

During the inspection, the miner collected several nickings from the coalface to test their quality.

点検の際、坑内作業員は採炭面の側面を切削したときに出る小さな石炭をいくつか集めて品質を調べた。

Sense（1）

(mining) Small coal produced during cutting at the side of the coalface.