seam /ˈsiːm/ noun
plural seams
plural seams
Learner's definition of SEAM
: a line where two pieces of cloth or other material are sewn together
: a line where two pieces of wood, metal, dough, etc., are joined together
technical : a layer of coal, rock, etc., that is between two other layers of rock underground sometimes used figuratively to describe a good source of something valuable

be bursting at the seams

see 1burst

come/fall apart at the seams

: to break into parts or pieces usually used figuratively to describe someone or something that is in very bad condition