soaker pad

From soaker +‎ pad, due to the absorbent pad's purpose of soaking up liquid.

soaker pad (plural soaker pads)

1. A waterproof mattress topper, especially one intended for urine (i.e. unpotty-trained or incontinence); a bed protector.

   Synonym: bed pad

   • 1979, Nursing Mirror, volume 148, numbers 14–26, IPC Specialist and Professional Press, page 25:

     The study was made in a geriatric male ward where most patients were incontinent and involved 2,256 patient checks over 4,368 patient hours. The Kylie sheet comprises two washable and reusable components. First, there is a "soaker pad" of needled rayon supported by a polypropylene mesh.

   • 1997, Deitra Leonard Lowdermilk, Irene M. Bobak, Shannon E. Perry, Maternity & Women's Health Care, Mosby, →ISBN, page 577:

     A soaker pad can be placed under the infant so that it and not the blanket absorbs the overflow urine.

   • 2022, James E. Popham, Anna Johnson and Les Samuelson, quoting C. J. J. Mialkowski, “Crime as a Social Problem: Social Inequality and Justice”, in Jessica Antony, Les Samuelson, Wayne Antony, editor, Power and Resistance: Critical Thinking About Canadian Social Issues, 7 edition, Fernwood Publishing, →ISBN, page 430:

     Residents who routinely soil their bed despite incontinence products are not permitted to have an extra soaker pad or towel in bed to help protect sheets and blankets from soiling.

2. Synonym of meat pad (“an absorbent pad placed underneath raw meat in order to absorb excess moisture and fluids (like blood) so as to prevent the buildup of harmful bacteria”).
3. A diaper insert, especially a booster pad.