A group of chopped bundles of glass fibers which has collected on the SMC machine and then fallen into the bed of glass The clump produces areas of high glass content which may not wet-through
a grouping of a number of similar things; "a bunch of trees"; "a cluster of admirers"
A clump of things such as wires or hair is a group of them collected together in one place. I was combing my hair and it was just falling out in clumps
If things clump together, they gather together and form small groups or lumps. Brown rice takes longer to cook but it doesn't clump together as easily as white rice