Advanced Vocabulary for TOEFL - Time and Space

occurring once every two years

a period of 12 months based on which a company, government or individual does financial reporting or budgeting

a period of time in history or someone's life, during which significant events happen

a hypothetical structure that connects regions of space-time that are far apart

(of the moon) to gradually decrease in its visible illuminated surface as it progresses from full to new moon

(of the moon) to progressively display a larger illuminated section until it turns into a full moon

(of time) to pass by

the time in the evening when the sun is below the horizon

the theory that adds the notion of time to that of a three-dimensional space

a usually small meteor that burns with a bright light when entering the earth's atmosphere

a star that is relatively small in size or mass and is not very bright

a glowing cloud of gas and dust in outer space, often the result of a star explosion or formation

a small celestial body that becomes visible as a meteor upon entrance into the atmosphere of the earth

the branch of physics that studies celestial objects and phenomena in the universe, such as stars, galaxies, and cosmic radiation

a branch of biology that deals with the study of life in space

the colored lights, mainly green and red, in the sky seen primarily near the northern magnetic pole

the colored lights, mainly green and red, in the sky seen primarily near the southern magnetic pole

the time as measured at Greenwich, London, on the line of 0° longitude, used to calculate the time across the globe

the 100th anniversary of an event or occasion

the 200th anniversary of an event or occasion

continuing forever or indefinitely into the future

the calendar introduced by Pope Gregory XII in 1582, as a modification for the Julian Calendar, presently used in many parts of the world

a planet that is outside the solar system

the complete and round-shaped moon as seen from the earth

denoting the shape of the new moon

an endless or lengthy period of time

(astronomy) the celestial zone in the sky where the sun, moon, and planets appear to move, traditionally divided into twelve equal segments, each associated with a distinct name and symbol