accretion in German

(uncountable, also, figurative) Increase by natural growth, especially the gradual increase of organic bodies by the internal addition of matter; organic growth; also, the amount of such growth. [from early 17th c.]

(uncountable) (Gradual) increase by an external addition of matter; (countable) an instance of this.

(uncountable) (Gradual) increase by an external addition of matter; (countable) an instance of this.

(astrophysics) The formation of planets, stars, and other celestial bodies by the aggregating of matter drawn together by gravity; also, the growth of a celestial body through this process.