fluid dram

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fluid dram

[¦flü·əd ′dram]
(mechanics)
Abbreviated fl dr.
A unit of volume used in the United States for measurement of liquid substances, equal to ⅛ fluid ounce, or 3.6966911953125 × 10-6 cubic meter.
A unit of volume used in the United Kingdom for measurement of liquid substances and occasionally of solid substances, equal to ⅛ fluid ounce or 3.5516328125 × 10-6 cubic meter.