1. Comminuted glance coal.

2. The stalk or stem of corn and grasses, usually jointed and hollow.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• calum,
• colum,
• xulm,
• vulm,
• fulm,
• dulm,
• cylm,
• chlm,
• cjlm,
• c8lm,
• c7lm,
• cupm,
• cuhlm,
• kulm,
• kulum,
• kulam,
• culme,
• CuLAM,
• culum,
• culim

• Cullen,
• calm,
• cullum.

The adjective form of the word "culm" is "culmic".

The plural of the "culm" can be the "culms".

The singular of the "culm" can be the "culm".