> as lemmas

1948 U.S. Naval War Coll. Information Service for Officers 1 11 No amount of attention and effort spent on the bomb itself could overcome weakness in the delivery system caused, for example, by unreliability of the aircraft or its crew.

1968 Listener 19 Dec. 813/1 After the war, the Soviet Union had two defence priorities: the construction of nuclear weapons and delivery systems.

1984 Listener 25 Oct. 17/1 Broadcasting satellites, whether they pump signals direct into the home or through the head-ends of cable services, will become an increasingly important delivery system.

1999 G. Bear Darwin's Radio vi. 41 Hollowed-out retroviruses were commonly used in gene therapy and genetic research as delivery systems for corrective genes.

2003 U.S. News & World Rep. 17 Feb. 20/2 Biological weapons could be scarier still, particularly if Saddam employed a nonconventional delivery system, such as aerosol sprayers hidden along major roads.

2014 Vanity Fair Dec. 135/1 It was the marriage of digital photography and the Internet that provided the delivery system for potential mass proliferation [of the selfie].