Definition of accretor in English:

accretor

noun

  • 1A person who or thing which engages in or promotes the accumulation or gradual increase of something.

  • 2Ecology
    rare Ecology. A plant, group of plants, or ecosystem that promotes the accretion of sediment. rare.

  • 3Astronomy
    Astronomy. A celestial object that gains matter by accretion; specifically the component of an interacting binary system, typically a compact star or black hole, which accretes material derived from the other component.

Origin

Late 19th century; earliest use found in American Catholic Quarterly Review. From accrete + -or.

Pronunciation:

accretor

/əˈkriːtə/