American Heritage® Dictionary of the English Language, Fourth Edition
- adj. Of or relating to astronomy.
- adj. Of enormous magnitude; immense: an astronomical increase in the deficit.
Century Dictionary and Cyclopedia
- Pertaining or related to astronomy; connected with or relating to astronomic observation or research.
GNU Webster's 1913
- adj. Of or pertaining to astronomy; in accordance with the methods or principles of astronomy.
- n. geography treats of the earth as a planet, of its shape, its size, its lines of latitude and longitude, its zones, and the phenomena due to to the earth's diurnal and annual motions.
- adj. relating or belonging to the science of astronomy
- adj. inconceivably large
- Attested since at least 1550, from Middle French astronomique or directly from Latin astronomicus, from Ancient Greek ἀστρονομικός. (Wiktionary)
“In addition, it took 11 years of observing to tease out the presence of the habitable zone planet, a short time in astronomical terms.”
“One hundred million years to a human seems an awful long time, but in astronomical time periods, that's nothing compared to the life of the stars.”
“WASHINGTON & mdash; The cost of NASA's replacement for the Hubble Space Telescope is giving new meaning to the word astronomical, growing another $1.5 billion, according to a new internal NASA study released Wednesday.”
“Like whirling tornados coming in astronomical sequence of order and in numbers, Barack Obama is definitely twisting across the nation pounding CHANGE without boundaries with a fury!”
“(The apparent motion against the stars is due to the fact that Comet SW3 has been fairly close to the Earth, about 25 times the distance between the Earth and Moon; that's close in astronomical terms.)”
“If you did well on it, you're pretty well versed in astronomical knowledge.”
“The 20th century warming counters a millennial-scale cooling trend which is consistent with long-term astronomical forcing.”
“This is the work of Texas State University professor Donald W Olson and his team, who specialise in 'astronomical sleuthing'.”
“In the second century B.C. a little circle appeared in Greek astronomical texts as a place holder, most probably an abbreviation of the Greek word oudén (“not one,” “nothing”).”
“Thus we have two great and infinitely valuable attributes of the photographic plate in astronomical investigations, fidelity or accuracy, and seeing the unseeable.”
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