reference frame
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
However, the notion of continental groupings as a meaningful reference frame for understanding human biological variation persisted.
From Scientific American
For decades, radio astronomers have tracked minute changes in Earth’s surface rotation—the length of a day—against a cosmic reference frame: the fixed position of distant cosmic beacons called quasars.
From Science Magazine
This was achieved by Gaia tracing its movement against the stars, using the "fixed" points of light from very far-away galaxies as a reference frame.
From BBC
It was the basis of a brand-new celestial reference frame, a fixed, imaginary grid against which everything else moves, akin to lines of latitude and longitude on Earth.
From Science Magazine
It said: "They are much more than a convenient geographical reference frame. They are fundamental to our notion of what our country is and of our own place within it."
From BBC
From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.