Related Clues:

• Scale marking, perhaps
• It goes with tele- or epi-
• Precious metal unit
• Smallish weight measurement
• Nana
• Prevention amount?
• Slightest bit
• Unit equal to 15.432 grains
• Shot-glass quantity
• Fluid measure
• Fraction of an ounce
• One thousandth of a kilo
• Metric amount
• Sixteenth of a pound
• Bit of prevention?