absorbent core
nounEtymology From absorbent + core.
1
The innermost layer of a menstrual pad or incontinence wear, such as a diaper, that absorbs and retains (stores) the liquid.
2
Used other than figuratively or idiomatically: see absorbent, core.
Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.