Oak"um (?), n. [AS. acumba; pref. (cf.G. er-, Goth. us-, orig. meaning, out) + cemban to comb, camb comb. See Comb.]


The material obtained by untwisting and picking into loose fiber old hemp ropes; -- used for calking the seams of ships, stopping leaks, etc.


The coarse portion separated from flax or hemp in nackling.


White oakum, that made from untarred rope.


© Webster 1913.

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