sliver vs sluice box

sliver

noun
  • A small amount of something; a drop in the bucket; a shred. 

  • A narrow high-rise apartment building. 

  • A strand, or slender roll, of cotton or other fiber in a loose, untwisted state, produced by a carding machine and ready for the roving or slubbing which precedes spinning. 

  • Specifically, a splinter caught under the skin. 

  • A long piece cut or rent off; a sharp, slender fragment; a splinter. 

  • Bait made of pieces of small fish. Compare kibblings. 

verb
  • To cut or divide into long, thin pieces, or into very small pieces; to cut or rend lengthwise; to slit. 

sluice box

noun
  • A box with riffles along the bottom, used to trap heavier gold particles as water washes them and the other material along the box. 

How often have the words sliver and sluice box occurred in a corpus of books? (source: Google Ngram Viewer )