- (botany) Grown together
- Characterized by accretion; made up; as, accrete matter.
- (transitive) To make adhere; to add; to make larger or more, as by growing.
- (intransitive) To adhere; to grow or to be added to gradually.
- (intransitive) To grow together, combine; to fuse.
"Astronomers believe the Earth began to accrete more than 4.6 billion billion years ago."