Another name for ground grain is flour.
Another name for a grain husk is 'hull'.
grain
BRAN
Particle size is another name for the term grain size.
ground grain is grain (aka wheat, barley or other) that is ground up between to hard things to make flour.
Any grain can be ground into flour but the most common grain used is wheat.
Milo is another name for sorghum. It's a type of grain.
Another word for couscous is "semolina." Couscous is made from semolina wheat, which is coarsely ground and typically steamed. While "semolina" refers specifically to the grain used, "couscous" describes the final dish that results from preparing the grain.
Another name for geothermal energy is ground source heat.
Ground rice is from the rice grain. Semolina is from the wheat grain. Semolina is the one that has gluten.
grist
A pit or depression.