Definition of rower-back in US English:

rower-back

noun

rare, historical
  • A trough in which herrings are stirred into salt.

Origin

Mid 17th century. Apparently either from Dutch roerbak, or from row + -er + back (although this is also attested later). Compare rowed and quot. 1641 at row.

Pronunciation

rower-back

/ˈrəʊəbak/