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Essential Words Needed for the GRE - The Space-time Continuum
Here you will learn some English words about time and space, such as "spasmodic", "aeon", "millennial", etc. that are needed for the GRE exam.
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epoch
[noun]
a subdivision of a geologic period, characterized by distinctive and globally recognizable rock layers, fossils, and significant changes in Earth's climate and biota
equinox
[noun]
either of the two moments in a year when the Sun, in its apparent motion along the ecliptic, crosses the celestial equator, resulting in approximately equal periods of daylight and darkness worldwide
in due course
[adverb]
at the appropriate or expected time, without rushing or delay
umbra
[noun]
the part of a shadow that is completely dark; caused by acute light blockage
magnetic storm
[noun]
a disruption in earth's magnetic field caused by solar activity; resulting in variations and changes that can impact electronic systems and communications on earth
interstellar
[adjective]
situated or occurring between stars or within the space that exists between stars
extraterrestrial
[adjective]
relating to or originating from outside the Earth or its atmosphere
cosmic dust
[noun]
very small molecules serving as raw material for forming planets and they exist in between galaxies, stars, and etc.; originally derived from the stars
biosphere
[noun]
a part of planet where the air, land, and water are suitable for all the living things to exist on
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