specimen collection device specimen pad Derived from NCIT sponge definition. swab polysponge surface wipe specimen sponge https://orcid.org/0000-0002-8844-9165 absorbant pad A sample collection device consisting of a soft flexible, absorbent pad usually made from natural material such as gauze or cotton, used to absorb specimen fluid or particulate matter. sample pad sampling sponge An absorbent pad and its accompanying container are designed to provide safe storage and transport to various degrees for diagnostic and clinical samples, infectious and hazardous materials, chemicals, pharmaceuticals and environmental samples. specimen pad ready for release