Tin \Tin\, v. t. [imp. & p. p. Tinned; p. pr. & vb. n. Tinning.] To cover with tin or tinned iron, or to overlay with tin foil.
Source: Webster's Revised Unabridged Dictionary (1913)
Tinned \Tinned\, a.1. Covered, or plated, with tin; as, a tinned roof; tinned iron.
2. Packed in tin cases; canned; as, tinned meats. --Cassell (Dict. of Cookery).