搗とう精せいMeanings1nounrice polishing; rice millingTechnical term for removing the outer bran layer from brown rice to produce white rice. Used in agriculture and food processing contexts.搗とう精せいの工こう程ていで、玄げん米まいから白はく米まいが作つくられる。In the rice-polishing process, white rice is produced from brown rice.