Definition of oakum noun from the Oxford Advanced Learner's Dictionary

 

oakum

 noun
noun
BrE BrE//ˈəʊkəm//
 
; NAmE NAmE//ˈoʊkəm//
 
[uncountable]
 
jump to other results
a material obtained by pulling old rope to pieces, a job done in the past by prisoners Word Origin Old English ācumbe, literally ‘off-combings’. The current sense dates from Middle English.
See the Oxford Advanced American Dictionary entry: oakum