oakum

/หˆษ™สŠkษ™m/

IPA: /OW1 K AH0 M/

noun
  1. 1

    A material, consisting of tarred fibres, used to caulk or pack joints in plumbing, masonry, and wooden shipbuilding.

  2. 2

    The coarse portion separated from flax or hemp in hackling.

Synonyms

Source: https://en.wiktionary.org/wiki/oakum