de-icing system

induction system icing

anti-icing system

thermal anti-icing system

electrical anti-icing system

hot-air anti-icing system

icing inhibitor

anti-icing additive

anti-icing detection

icing detector

icing test

engine-icing test

aircraft icing

flight in icing conditions

heavy icing

icing

icing hazard

icing-rate meter

inflight icing

light rime icing

moderate icing

qualify icing

severe icing

fire extinguishing system sprinkler system and fire alarm system

merchant ship communication system (mercomm system)

multiple launch rocket system (MLRS); multiple rocket launcher system

Air Force weapons system / AF weapon system

attitude-and-heading reference system / attitude and heading reference system (AHRS)

selective calling system, SELCAL system

Unmanned Aerial System / Uncrewed Aircraf System (UAS)

system of system common operating environment

active denial system

active infrared (IR) guidance system