Coak, n.
1. Carp. A kind of tenon connecting the face of a scarfed timber with the face of another timber, or a dowel or pin of hard wood or iron uniting timbers. [Also spelt coag.]
2. A metallic bushing or strengthening piece in the center of a wooden block sheave.
Coak, v. t. Carp. To unite, as timbers, by means of tenons or dowels in the edges or faces.
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Coke n. Mineral coal charred, or depriver of its bitumen, sulphur, or other volatile matter by roasting in a kiln or oven, or by distillation, as in gas works. It is lagerly used where ░ smokeless fire is required. [Written also coak.]
Gas coke, the coke formed in gas retorts, as distinguished from that made in ovens.