sanitary napkin
absorbent item worn in the underwear by women who are menstruating, bleeding after giving birth or similar
en-US/ˈsænɪtəɹi ˈnæpkɪn/
en-GB/sænɪtɹiː ˈnæpkɪn/
absorbent item worn in the underwear by women who are menstruating, bleeding after giving birth or similar