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English thesaurus
suppression of enemy air defenses
USA	Activity that neutralizes, destroys, or temporarily degrades surface-based enemy air defenses by destructive and/or disruptive means (JP 3-01) see also electromagnetic spectrum, electronic warfare
Suppression of Enemy Air Defense
abbr., astronaut., mil.	SEAD (See also DEAD)
mil., abbr.	SEAD

suppression of enemy air defenses: 1 phrase in 1 subject

British usage, not spelling

1