an undergarment, as a camisole, worn over the upper part of a corset.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for corset cover
Historical Examples of corset cover
She gazed at the superb curve of her shoulders rising above the dainty lace of her corset-cover, and smiled undisguisedly.The Shoulders of Atlas
Mary E. Wilkins Freeman