1. countable noun. A seam is a line of stitches which joins two pieces of cloth together. 2. countable noun. A seam of coal is a long, narrow layer of it underneath the ground. The average U.K. coal seam is one metre thick. More @Wikipedia
Hover over any link to get a description of the article. Please note that search keywords are sometimes hidden within the full article and don't appear in the description or title.