វេត្រាណូ

Sanskrit - From वेत्र (vetra, “cane, stick”)

Pali - aṇū (“molecule, atom, particule”), literally "rod-shaped particule" (see similar etymologies for English bacteria, bacillus).

English - Pali aṇū (“molecule, atom, particule”), literally "rod-shaped particule" (see similar etymologies for bacteria, bacillus).