FNA (Floofino Nucleic Acid) (floofinition) – self-replicating fur initially shed by housepets. FNO is present on almost all clothing, furniture, and food in a home with housepets, and can also be found in hairballs and animal feces. According to reports denied by NASA, FNA was discovered on the Moon during the first manned lunar landing.

In use: “Floofcon 2019 rose to international prominence when an announcement came out that floofologists had created a home FNA (Floofino Nucleic Acid) test kit to determine specifically from which animal hairs, hairballs, and the errant turd that turns up on the floor, originates.”

h/t to Jill Dennison, Floofologist