quaternary
Pronunciation
Adjective
B1 Intermediate
Quick answer
Fourth in a series or order, or relating to the most recent geological period, which includes the present.
Usage notes
Capitalized as "Quaternary" when referring to the specific geological period.
Test yourself
Which word fits the gap? "The _____ period includes both the most recent ice ages and the rise of modern humans."
Answer: quaternary
In your own words, what does "quaternary" mean?
Fourth in a series or order, or relating to the most recent geological period, which includes the present.
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