The story
By genericization from a trademark, Nasosorption, from a blend of naso- + absorption. The method is still proprietary, so its name is still capitalized in careful (and precise) writing.
Etymology from Wiktionary, CC BY-SA 4.0.
nasosorption
Today it means: A method of sampling (specimen collection) from nasal passages, involving absorption of fluid (from the mucosal lining of the nose) by a type of swab different from older types. Full definition →