n. 25B6; noun
meteorite fragments : PIECE, bit, particle, speck; chip, shard, sliver, splinter; shaving, paring, snippet, scrap, offcut, flake, shred, wisp, morsel; Scottish skelf.
a fragment of conversation : SNATCH, snippet, scrap, bit.
25B6; verb explosions caused the chalk to fragment : BREAK UP, break, break into pieces, crack open/apart, shatter, splinter, fracture; disintegrate, fall to pieces, fall apart.