n. A short fibre left over from combing wool or spinning silk during the preparation of textile yarns. Sometimes it is referred to as 'Raw Silk', although this is somewhat of a misnomer.
the GNU version of the Collaborative International Dictionary of English
n. A short or waste piece or knot of wool separated from the longer staple by combing; also, a similar piece or shred of waste silk.
The Century Dictionary and Cyclopedia
n. One of the short pieces and knots of wool taken from the long staple in the process of combing.
Word Usage
"There was a good deal of waste in this combing, that is, large clumps of tangled wool called noil were combed out."