Medical term:
ounce
ounce
(oz) [owns]1. in the apothecaries' system, a unit of weight equal to ¹⁄₁₂ of a pound or 480 grains (31.103 grams); symbol ℥. See also Table of Weights and Measures in the Appendix.
2. in the avoirdupois system, a unit of weight equal to ¹⁄₁₆pound (28.3495 grams).
fluid ounce in the apothecaries' system, a unit of liquid measure equal to 8 fluid drams (29.57 ml). See also Table of Weights and Measures in the Appendix.
a unit of capacity (liquid measure) of the apothecaries' system. In the United States, it is 8 fluid drams, one sixteenth of a pint, or the equivalent of 29.57 mL. In Great Britain, it is an imperial ounce and is 8 (imperial) fluid drams but is one twentieth of an (imperial) pint, or 28.41 mL. See also Table of Weights and Measures in the Appendix.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
ounce (oz.),
(owns),A weight containing 480 g, or 1/12 pound troy and apothecaries' weight, or 437.5 g, 1/16 pound avoirdupois. The apothecary oz (used in the USP) contains 8 drams and is equivalent to 31.10349 g; the avoirdupois oz is equivalent to 28.35 g.
[L. uncia, the twelfth part (of a pound or foot) hence also inch]
Farlex Partner Medical Dictionary © Farlex 2012
ounce
An English, non-SI (International System) unit of weight, largely obsolete but still popular in the US. The apothecary ounce is equal to 31.1 g; the avoirdupois ounce is equal to 28.35 g.Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.
ounce
An English system unit of weight that is obsolete in civilized nations, but is still popular in the US; the apothecary ounce is equal to 31.1 g; the avoirdupois ounce is equal to 28.35 gMcGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.
ounce
(owns)1. A weight containing 480 gr, or 1/12 pound troy and apothecaries' weight, or 4371/2 grains; 1/16 pound avoirdupois. The apothecary ounce (used in the USP) contains 8 drams and is equivalent to 31.10349 grams, the avoirdupois ounce is equivalent to 28.35 g.
2. Fluid-ounce; United States: 1/128 U.S. gallon (29.57 mL, 1.804 cubic inches). British Imperial System: the volume occupied by 1 avoirdupois ounce of distilled water at 62° F (28.41 mL, 1.734 cubic inches).
[L. uncia, the twelfth part (of a pound or foot) hence also inch]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
ounce
(oz.) (owns)A weight containing 480 g, or 1/12 pound troy and apothecaries' weight, or 437.5 g, 1/16 pound avoirdupois.
[L. uncia, the twelfth part (of a pound or foot) hence also inch]
Medical Dictionary for the Dental Professions © Farlex 2012
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