balloon apron
now historical
noun
A defence against hostile aircraft consisting of a connected system of balloons carrying wire cables reaching to the ground.
Origin
Early 20th century.
- pollen-analytic
- pollen-analytical
- pollen basket
- pollen beetle
- pollen brush
- pollen cell
- pollen chamber
- pollen comb
- pollen count
- pollen-dated
- pollen diagram
- pollened
- pollen fever
- pollen grain
- pollen granule
- pollen graph
- polleniferous
- pollenin
- pollen index
- pollenise
- pollenivorous
- pollenization
- pollenize
- pollen mass
- pollen mother cell