astronomical

• POS: Adjective
• HYPHEN: as=tro=nom=i=cal

CIDE DICTIONARY

astronomical, a. [L. astronomicus, Gr. 'astronomiko`s: cf. F. astronomique.].

 Of or pertaining to astronomy; in accordance with the methods or principles of astronomy.  [1913 Webster]

Astronomical clock. See under Clock. -- Astronomical day. See under Day. -- Astronomical fractions, Astronomical numbers. See under Sexagesimal.

OXFORD DICTIONARY

astronomical, adj. (also astronomic)
1 of or relating to astronomy.
2 extremely large; too large to contemplate.

Idiom

astronomical unit a unit of measurement in astronomy equal to the mean distance from the centre of the earth to the centre of the sun, 1.495 x 10(11) metres or 92.9 million miles. astronomical year see YEAR n. 1.

Derivative

astronomically adv.

Etymology

L astronomicus f. Gk astronomikos

THESAURUS

astronomical

Atlantean, Brobdingnagian, Cyclopean, Cynthian, Gargantuan, Herculean, Homeric, abysmal, amplitudinous, anagalactic, asteroidal, astral, astrologic, astrologistic, astrologous, astronomic, astrophysical, awesome, boundless, bulky, celestial, circumplanetary, cislunar, colossal, cosmic, elephantine, empyreal, empyrean, enormous, epic, equinoctial, extensive, extragalactic, galactic, giant, giantlike, gigantic, heavenly, heliacal, heroic, huge, immeasurable, immense, infinite, intercosmic, interplanetary, intersidereal, interstellar, jumbo, king-size, large, lunar, lunary, lunate, lunular, lunulate, mammoth, massive, massy, meteoric, meteoritic, mighty, monster, monstrous, monumental, mountainous, nebular, nebulose, nebulous, outsize, overgrown, planetal, planetarian, planetary, planetesimal, prodigious, profound, semilunar, sidereal, sizable, solar, spacious, sphery, star-spangled, star-studded, starry, stellar, stellary, stupendous, terrestrial, titanic, towering, tremendous, uranic, vast, voluminous, weighty, zodiacal