seam /si:ｍ/ n. ［c］1. 缝，接缝：the seams of his trousers 他的长裤的接缝处；burst at the seams 胀破裂缝，过满；come/fall/break apart at the seams 破裂；失败，崩溃 2. 煤层：a workable seam 可采煤层，可采矿层