Definition of shell money in English:
noun[mass noun] chiefly historical
Shells used as a medium of exchange, especially wampum.
- The new mother, 18-year-old Fazila, is given a necklace of traditional stone and turtle shell money.
- The value of the shell money is based on the goods it traded for yesterday - since we can't know what prices will be today.
- A second type of shell money is a better made and finely polished mollusc, spondylous or mussel shell strand.