ALL meanings of cluster fly
clus·ter fly
C c - noun cluster fly a dipterous fly, Pollenia rudis, that tends to gather in large numbers in attics in the autumn: family Calliphoridae. The larvae are parasitic in earthworms 3
- noun cluster fly a black fly, Pollenia rudis, slightly larger than the housefly, commonly found hibernating in large numbers in homes in the fall. 1