Chaff
Chaff (/tʃæf/; also UK: /tʃɑːf/) is the dry, scaly protective casing of the seeds of cereal grains, or similar fine, dry, scaly plant material such as scaly parts of flowers, or finely chopped straw. Chaff is indigestible by humans, but livestock can eat it and in agriculture it is used as livestock fodder, or is a waste material ploughed into the soil or burned.
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