unspecific term for a globular red, red-hot or agitated mass, incl. 1 red round berry or cluster of berries (esp. rowan berry) 2 drop (of liquid) 3 (red-hot) mass of metal 4 ball of fire (e.g. a thunderbolt or meteor) 5 blaze of fire, firebrand 6 live coal, glowing ember 7 phosphorescent sea foam 8 school/shoal of fish