active mass

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noun Chemistry.

the effective concentration of a substance.

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His boss, whom he admires, is waiting to meet with him about the big project.

His boss, who he admires, is waiting to meet with him about the big project.

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Origin of active mass

First recorded in 1905–10

Words nearby active mass

active immunity, active layer, active list, actively, active margin, active mass, active-matrix, active optics, active reason, active safety, active service

How to use active mass in a sentence

Their bodies were later found incinerated and buried in mass graves outside of town.
Why Mexicans Are Enraged by Obama’s Big Tuesday Meeting|Ruben Navarrette Jr.|January 6, 2015|DAILY BEAST
Beyond the huge American flag that hung over the street, the mile-long mass of cops ended.
Funeral Protest Is Too Much for NYPD Union Boss|Michael Daly|January 5, 2015|DAILY BEAST
“The United States had gone to war declaring it must destroy an active weapons of mass destruction program,” the Times reported.
Political Memes That Absolutely Must Die in 2015|Asawin Suebsaeng|January 1, 2015|DAILY BEAST
Google itself has taken a break and put plans for mass production on hold.
You Were Wrong About Miley & Bitcoin: 2014’s Failed Predictions|Nina Strochlic|December 31, 2014|DAILY BEAST

A colleague overheard two conservative Mass. lawmakers talking about what “the gays” could do.
The Real Story Behind the Fight for Marriage Equality|E.J. Graff|December 30, 2014|DAILY BEAST
Charred beams and blackened walls showed stark and gaunt in the glow of a smoldering mass of wreckage.
The Red Year|Louis Tracy
But hitherto, before these new ideas began to spread in our community, the mass of men and women definitely settled down.
The Salvaging Of Civilisation|H. G. (Herbert George) Wells
We must have motif first, then technique to adapt and adjust expression and to develop facility in the active agents.
Expressive Voice Culture|Jessie Eldridge Southwick
The Turks were no longer in mass but extended in several lines, less than a pace between each man.
Gallipoli Diary, Volume I|Ian Hamilton
With the announcement of the thirty-six directors, it was possible to proceed to the active opening of the institutions.
Readings in Money and Banking|Chester Arthur Phillips