diaper wrap

From diaper +‎ wrap. First sense probably from the Diaper Wrap patented product filled by American inventor Marion Donovan on 19 January 1949 (see quotations).

diaper wrap (plural diaper wraps)

1. (Canada, US) Synonym of plastic pants (“an undergarment worn over a diaper/nappy (or underwear) in order to prevent leakage through the fabric.”)
   • 1951 June 12, Marion Donovan, “Diaper Wrap”, in United States Patent Office, editor, Official Gazette‎, volume 647, page 589:

     A diaper wrap which is arranged to enclose a diaper and to extend over the crotch portion and up the front and back of the wearer substantially to the waist line […]

   • 2005, Linda Sonna, Early-Start Potty Training, McGraw-Hill, →ISBN, page 58:

     Cover it with a breathable diaper wrap. The wrap holds the diaper in place and helps contain wetness.

   • 2016, Penny Simkin, Janet Whalley, Ann Keppler, Janelle Durham, April Bolding, Preconception: Improve Your Health and Enhance Fertility, Meadowbrook, →ISBN, page 368:

     Pocket diapers have a diaper wrap on the outside and a fleece liner on the inside, which can keep your baby dry and reduce diaper rash. You can fill the pocket between the inner and outer layers with a cloth diaper, hemp, or other material.

2. (Canada, US) A diaper, designed chiefly for incontinent dogs, that wraps around the animal's waist.

• diaper cover (Canada and United States)
• nappy cover (UK and Commonwealth)
• nappy wrap (UK and Commonwealth)
• pilchers (Australia and New Zealand)
• waterproof pants