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\ ˈkəlm 
\
\Definition of culm
(Entry 1 of 2)
: refuse coal screenings : slack
culm
noun (2)Definition of culm (Entry 2 of 2)
: a monocotyledonous stem (as of a grass or sedge)
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Time Traveler for culm
The first known use of culm was in the 14th century
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