DICT.TW Dictionary Taiwan

 Calk v. t. [imp. & p. p. Calked p. pr. & vb. n. Calking.]
 1. To drive tarred oakum into the seams between the planks of (a ship, boat, etc.), to prevent leaking. The calking is completed by smearing the seams with melted pitch.
 2. To make an indentation in the edge of a metal plate, as along a seam in a steam boiler or an iron ship, to force the edge of the upper plate hard against the lower and so fill the crevice.