a line where two pieces of cloth, leather etc have been stitched together:
She was repairing Billy's trousers, where the seam had come undone.
Join the shoulder seams together.
a layer of a mineral under the ground
if a plan, organization etc is coming apart at the seams, so many things are going wrong with it that it will probably fail:
The health service seems to be falling apart at the seams.
if a piece of clothing is coming apart at the seams, the stitches on it are coming unfastened
if a room or building is bursting at the seams, it is so full of people that hardly anyone else can fit into it
a thing, place, or group from which a type of thing can be obtained:
The 466-page book is a rich seam of statistical information.
a line where two pieces of metal, wood etc have been joined together