active mass
nounChemistry.
the effective concentration of a substance.
Origin of active mass
1First recorded in 1905–10
Words Nearby active mass
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024
How to use active mass in a sentence
Guldberg and Waage expressed this in the form “the active mass of a solid substance is constant.”
The nerve cells are a highly active mass of living material.
A Practical Physiology | Albert F. Blaisdell
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