oil cake

American Heritage® Dictionary of the English Language, Fourth Edition

1. n. The solid residue that is left after certain oily seeds, such as cottonseed and linseed, have been pressed free of their oil. It is ground and used as cattle feed or fertilizer.

Century Dictionary and Cyclopedia

1. n. A cake or mass of compressed linseed, or rape, poppy, mustard, cotton, or other seeds, from which oil has been extracted. Linseed oil-cake is much used as a food for cattle. Rape oil-cake is used as a fattening food for sheep. These and other oil-cakes are also valuable as manures. Cotton-seed oil-cake is largely employed in and exported from the southern United states.

Wiktionary

1. n. The solid residue remaining after any oilseed has been pressed to remove the vegetable oil; it is used, with other ingredients, as animal food

GNU Webster's 1913

1. n. the refuse of flax seed, cotton seed, or other vegetable substance from which oil has been expressed, compacted into a solid mass, and used as food for cattle, for manure, or for other purposes.
2. n. See under Cake.

WordNet 3.0

1. n. mass of e.g. linseed or cottonseed or soybean from which the oil has been pressed; used as food for livestock