Fibrilles (2018)

May (Dieulefit 26), exhibition views

From the Latin fibra, of fiber (which is at the end). Diminutive of fiber.
Small fiber.
1. ANATOMY
Small filament composing a fabric, an organ, a fiber.
2. BOTANIC
a) Finest branch of a root forming the hair.
b) Twist or serpentine filament of certain plants.

3. TECHNOLOGY
Filament constituting the external envelope of the cellulose fibers.
B/ by analogy
Small networked line
especially small wrinkles or small colored veins appearing on the skin.
(Almost) synonymous with wrinkle, vein. 

(Sources CNRTL)