WordNet: Oortin pilvi

(astronomy) a hypothetical huge collection of comets orbiting the sun far beyond the orbit of Pluto; perturbations (as by other stars) can upset a comet's orbit and may send it tumbling toward the sun

• domain: topic astronomia, tähtitiede

• hypernym assemblaasi, kasauma, kokoelma, kokouma, yhdistelmä

Oortin pilvi

• (englanti) Oort cloud (synonyymi)