Noun
A radicle; a little root.
Source: Webster's dictionaryCiliary rootlet The ciliary rootlet is a cytoskeleton-like structure that originates from the basal body at the proximal end of a cilium. Source: Internet
Each stereocilium inserts as a rootlet into a dense filamentous actin mesh known as the cuticular plate. Source: Internet
Memory of leaping or crawling or shrugging rootlet by rootlet forward, across the flatness of everything.” Source: Internet