Seams

A flat inside seam, graded and pressed to one side; the

larger seam allowance being top-stitched to the garment

thereby enclosing the smaller.

A seam stitched with a flat straight grain or bias strip, made

with the same or contrasting fabric of suitable texture and

thickness.                      

 A seam in which the fabric to be stitched or seamed lies

 on the inner side of an arc, towards the center of the circle.

A seam joined by utilizing the short stitch length and small

bite of a zigzag pattern.

Seam joining all thicknesses from the face of the garment

 and catching the folded edge of the uppermost ply.

A seam constructed so that a narrow seam is contained

within a larger one, producing a clean finish.

A flat inside seam, graded and pressed to one side; the

larger seam allowance being top-stitched to the garment

thereby enclosing the smaller.

Felled seam, or flat-fell seam, is a seam made by placing one edge inside a folded edge of 

fabric, then stitching the fold down. It includes a top-stitched finish. It is useful for keeping

 seam allowances flat and covering raw edges

reference:

fashionbook.forza6.com

wikipedia.com