The ⚀trina·bicia·lengthel, or ⚀folial·length
The ⚀trina·bicia·lengthel (abbreviated ⚀t•b↓lgℓ) is a quarter of a ⚀granular·length or a dozenth of a ⚀linial·length (very close to 2 millimeters). This is a fair approximation of thickness of a piece of paper, or the the width of a human hair. As a consequence, a proposed colloquial name for this is the ⚀folial·length.