儿茶素 Traditional form: 兒茶素 Pinyin (reading): érchásù Definitions: catechin (biochemistry) Characters: 儿 - son, child 茶 - tea; tea leaves; tea plant 素 - plain; white; vegetarian; formerly; normally Traditional characters: 兒 - son, child 茶 - tea; tea leaves; tea plant 素 - plain; white; vegetarian; formerly; normally