1918 E. S. Farrow Dict. Mil. Terms p. ix I.C.—Inspected, Condemned.

1928 T. E. Lawrence Let. 19 July (1938) iv. 615 No, I am not adjutant, to this camp. Just typist, and i/c files, and duty rolls.

1958 Spectator 15 Aug. 219/1 If you were i/c security, it was obviously necessary to flush the lavatories of spies.

1962 L. Deighton Ipcress File viii. 51 The above named article of War Department property..should be returned to officer i.c. special issue room.

1965 Listener 11 Nov. 763/2 The commanding officer; the 2 I.C.; the adjutant.

1947 R. S. Wells in Language 23 ii. 81 We aim in this paper to replace by a unified, systematic theory the heterogeneous and incomplete methods hitherto offered for determining immediate constituents (hereafter abbreviated IC, plural ICs).

1953 Language 29 88 Shannon has conducted experiments in ordinary English orthography, and the reviewer has conducted similar ones, with the proper audiences, in terms of phonemic notation, the results of which bear on the stated correlation between IC-analysis and information theory.

1962 B. M. H. Strang Mod. Eng. Struct. vi. 79 They are immediate constituents (ICs), i.e. the forms that directly go to make up that which is under analysis. They themselves have ICs.

1965 Canad. Jrnl. Linguistics 11 45 Chomsky develops..IC analysis by his grammatical model of ‘phrase structure + transforms’.

1971 D. Crystal Linguistics iv. 212 In IC analysis, however, such disambiguation was impossible.

1966 Electronics 17 Oct. 87 The major problems in using IC's.

1969 New Scientist 18 Dec. 601/3 The IC memory is three times faster than the conventional memory.

1970 J. Earl How to choose Tuners & Amplifiers ii. 28 In a few years' time the majority of radio tuners will carry ICs as well as a few transistors and junction diodes.