Informal or abbreviated form meaning 'equivalent'; something that has the same value, function, or meaning as something else.
Shortened form of 'equivalent' (from Latin 'aequivalens'). Modern abbreviation used in scientific notation, programming, and casual writing to save space and time.
In chemistry and mathematics, 'equiv' saves time when writing formulas—'2 equiv of NaCl' means 'two equivalent amounts of sodium chloride.' It's the kind of shorthand that develops in communities of specialists who use a word constantly.
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