Definition for accretion disc - Oxford Dictionaries Online (World English)

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	accretion disc (ac¦cre\|tion disc) noun Astronomy a rotating disc of matter formed by accretion around a massive body (such as a black hole) under the influence of gravitation.		More words in this category alidade Alpha Centauri anomalistic year Caelum co-latitude conjunction declination axis extraterrestrial fix geocentric Hubble Space Telescope microwave background Plutino polar star supergiant tau Viking 2 Nearby Words accounts payable accounts receivable accoutre accoutrement Accra accra accredit accrete accretion accretion disc accretionary prism accrue acct. acculturate accumbent accumulate accumulation accumulative accumulator