Word Study
astronomer |
astronomian |
astronomic |
astronomical |
astronomical telescope |
astronomical unit
| astronomical year
| astronomically
| astronomize
| astronomy
| astronomy satellite
astronomical unit
WORDNET DICTIONARY
Noun astronomical unit has 1 sense
- astronomical unit(n = noun.quantity) au - a unit of length used for distances within the solar system; equal to the mean distance between the Earth and the Sun (approximately 93 million miles or 150 million kilometers); Array is a kind of astronomy unit
ROGET THESAURUS
astronomical unit
Length
N length, longitude, span, mileage, distance, line, bar, rule, stripe, streak, spoke, radius, lengthening, prolongation, production, protraction, tension, tensure, extension, line, nail, inch, hand, palm, foot, cubit, yard, ell, fathom, rood, pole, furlong, mile, league, chain, link, arpent, handbreadth, jornada, kos, vara, astronomical unit, AU, light- year, parsec, nanometer, nm, micron, micrometer, millimicron, millimeter, mm, centimeter, cm, meter, kilometer, km, pedometer, perambulator, scale, long, longsome, lengthy, wiredrawn, outstretched, lengthened, sesquipedalian, interminable, no end of, macrocolous, linear, lineal, longitudinal, oblong, as long as my arm, as long as today and tomorrow, unshortened &c (shorten), lengthwise, at length, longitudinally, endlong, along, tandem, in a line, in perspective, from end to end, from stem to stern, from head to foot, from the crown of the head to the sole of the foot, from top to toe, fore and aft.
For further exploring for "astronomical unit" in Webster Dictionary Online