Accretion

акреція

akrecija

(formation of celestial bodies by the aggregating of matter drawn together by gravity; growth of a celestial body through this process)

зроста́ння

zrostánnja

(process of separate particles aggregating or coalescing together; thing formed in this manner — see also concretion)

наро́щування

naróščuvannja

((gradual) increase by an external addition of matter; an instance of this)