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  2. Dram (unit) - Wikipedia

    en.wikipedia.org/wiki/Dram_(unit)

    Today's US teaspoon is equivalent to exactly 4.92892159375 ml, which is also 1 ⁄ 6 US fluid ounces, 1 + 1 ⁄ 3 US fluid drams, [5]: C-18 or 80 US minims. [5]: C-5 C-5 While pharmaceuticals are measured nowadays exclusively in metric units, fluid drams are still used to measure the capacity of pill containers .

  3. Minim (unit) - Wikipedia

    en.wikipedia.org/wiki/Minim_(unit)

    The minim (abbreviated min, ♏︎ or ♍︎) is a unit of volume in both the imperial and U.S. customary systems of measurement. Specifically, in the imperial system, it is 1 ⁄ 60 of an imperial fluid drachm [1] [2] or 1 ⁄ 480 of an imperial fluid ounce; in the U.S. customary system, it is 1 ⁄ 60 of a US customary fluid dram or 1 ⁄ 480 of a US customary fluid ounce.

  4. Apothecaries' system - Wikipedia

    en.wikipedia.org/wiki/Apothecaries'_system

    English-speaking countries also used a system of units of fluid measure, or in modern terminology volume units, based on the apothecaries' system. Originally, the terms and symbols used to describe the volume measurements of liquids were the same as or similar to those used to describe weight measurements of solids [33] (for example, the pound by weight and the fluid pint were both referred to ...

  5. Drop (unit) - Wikipedia

    en.wikipedia.org/wiki/Drop_(unit)

    In the United Kingdom, subsequent to the adoption of the minim and the creation of the British imperial system of units in the 1820s, a drop is defined as 1 British imperial minim, [3] the equivalence of ⁠ 1 / 60 ⁠ of a British imperial fluid drachm or ⁠ 1 / 480 ⁠ of a British imperial fluid ounce.

  6. Fluid ounce - Wikipedia

    en.wikipedia.org/wiki/Fluid_ounce

    An imperial fluid ounce is 1 ⁄ 20 of an imperial pint, 1 ⁄ 160 of an imperial gallon or exactly 28.4130625 mL. A US customary fluid ounce is 1 ⁄ 16 of a US liquid pint and 1 ⁄ 128 of a US liquid gallon or exactly 29.5735295625 mL, making it about 4.08% larger than the imperial fluid ounce. A US food labeling fluid ounce is exactly 30 mL.

  7. English units - Wikipedia

    en.wikipedia.org/wiki/English_units

    1963 c. 31 — Weights and Measures Act 1963 abolished the chaldron of coal, the fluid drachm and minim (effective 1 February 1971), discontinued the use of the quarter, abolished the use of the bushel and peck, and abolished the pennyweight (from 31 January 1969).

  8. Pinch (unit) - Wikipedia

    en.wikipedia.org/wiki/Pinch_(unit)

    ⁠ 1 / 2 ⁠ UK salt spoon is an amount of space that can accommodate 15 British imperial minims (⁠ 1 / 4 ⁠ British imperial fluid drachm or ⁠ 1 / 32 ⁠ British imperial fluid ounce; about 14·41 US customary minims (0·24 US customary fluid dram or 0·03 US customary fluid ounce) or 0·89 millilitres) of liquid.

  9. Paregoric - Wikipedia

    en.wikipedia.org/wiki/Paregoric

    For example, one formula for "Camphorated Tincture of Opium (Paregoric Elixir)" attributed to the United States Pharmacoepia of 1863 is: "Macerate 1 drachm each powdered opium and benzoic acid, 1 fluid drachm of anise, 2 ounces clarified honey, and 2 scruples camphor, in 2 pints diluted alcohol for 7 days, and filter through paper."