| Term: | Icing |
| Definition: | The accumulation of a deposit of ice on exposed objects, e.g. aircraft, ships, aerials, instruments. Icing may be produced by the deposition of water vapour or by the freezing on impact of droplets in the air (e.g. supercooled fog, cloud droplets, supercooled drizzle and rain, or, in the case of ships, sea spray or breaking waves). |