spiravirusEtymologyFrom Latin spīra (“coil”) + virus, after the shape of the virion.spiravirus means any virus of the family Spiraviridae. Lexicurio rates it Sui generis — a strength score of 87 out of 100.nounAny virus of the family Spiraviridae.“With the exception of anelloviruses, bidnaviruses, spiraviruses, and some inoviruses, the replicative protein of ssDNA viruses is the so-called HUH endonuclease that cuts genomic DNA at a specific site and initiates rolling circle (or rolling hairpin) replication.”