However, the abbreviation "lb" is derived from the libra part of the word. The former Italian currency the "lira" also derives from libra. Related: Our Guide to Baking Substitutions. If all this talk of libra is setting off a light bulb in your head, that's because it's also the name of seventh sign of the zodiac, which is typically symbolized by scales. That's because the sign is associated with balance, and is related to weights and measurements.
As for the word ounce, according to the Encyclopedia Brittanica , it originates from the Latin word uncia , which was the name for both a Roman unit of weight and length. According to The Week , uncia was borrowed by the Anglo-Norman French as "ounce" and then lent to their neighbors in England.
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She has taught science courses at the high school, college, and graduate levels. Facebook Facebook Twitter Twitter. Updated September 09, Featured Video. Cite this Article Format. Helmenstine, Anne Marie, Ph. Why lb Is the Symbol for Pounds. International System of Measurement SI. Definition of Angstrom in Physics and Chemistry. Frequently Asked Biology Questions and Answers.
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