Many of the nearbaseline humans of Slade Scrabo have a symaiotic brushbot, which is generally small and flexible enough to wear like a sash or collar
Biont-aioid mutual dependence.
The relationship between a biont entity or entities (such as a human) and an aioid entity or entities can be so mutually dependent that the beings are described as having a symaiotic relationship, and the aioid member(s) in such a relationship is known as a symaiote (or symaiotes). The biont member(s) is known as a symbiote (or symbiotes).