Definition

Noun

  • Blocks of metal used as ballast for ships.

Origin

16th century.

Comments

Also short for “pig iron.” These usually come in the form of cast lead or iron blocks. These blocks were poured and cast in molds called sows.

References

Kemp, P. (1994). The Oxford Companion to Ships and the Sea. Oxford University Press.

King, D., Hattendorf, J.B, & Estes, J.W. (1997). A Sea of Words: A Lexicon and Companion for Patrick O’Brian’s Seafaring Tales (2nd Ed.). Owl Books.

Rogers, J.G. (1985). Origins of Sea Terms. Mystic Seaport.