Related Clues:

• Avoirdupois unit
• Scotch serving
• Ounce fraction
• Druggist's weight
• Small measure
• Pub shot
• Eighth of a fluid ounce
• Pharmacy unit
• One-eighth of a fluid ounce
• Fraction of an ounce
• Wee weight
• Small bit of booze
• Wee bit o' Dewar's, say
• Three scruples
• Apothecaries unit