Sentences with phrase «called quaternary»
Africa did better during what is now called the Quaternary Megafauna Extinction (QME), losing about one - fifth of its big species, while Eurasia lost one - third.
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It belongs to a class of compounds called quaternary ammonium compounds, or «quats.»
The Osaka team enhanced their catalytic system for performing difficult Grignard chemistry at very crowded, so - called quaternary carbon atoms.
Not exact matches
However, conditioning agents are usually chemicals called polymers, silicones, and quaternary agents.
A significant number of my peers were of the «old school» and called me, derisively, a «Quaternary Urbanite» due to my rantings regarding tree spirits and the EEEEeeevil oil companies.
This curious paradox of few ice age extinctions even has a name — it is called «the Quaternary Conundrum».