Definition of oilstone in English:

oilstone

Syllabification: oil·stone
Pronunciation: /ˈoilstōn
 
/

noun

A fine-grained flat stone used with oil for sharpening cutting edges.
More example sentences
  • He's currently sharpening one of his chisels at the oilstone in the corner of the room.
  • This can be done by rubbing away surplus metal with a grindstone, whetstone, oilstone, steel, ceramic rod, leather strop or the palm of your hand.

Definition of oilstone in:

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Word of the day retroflex
Pronunciation: ˈrɛtrə(ʊ)flɛks
adjective
turned backwards