> as lemmas

1914 E. A. Dawe Paper Index 157/2 Machine finish (M.F.).

1965 S. C. Gilmour Paper (ed. 2) xix. 218 M.F. papers are much used for printing formes of type with line blocks.

1973 S. Jennett Making of Bks. (ed. 5) xi. 182 Machine-Finished Papers (or M.F.) have the normal finish of the paper-making machine.

1953 R. Ellison Let. 9 Apr. in R. Ellison & A. Murray Trading Twelves (2000) 42 Doc looked at me as though to say ‘come on, m.f., this ain't the time to start no shit’.

1959 Jazz Rev. Sept. 7/2 You go and buy me a tenor saxophone and I'll play the m-f.

1968 E. Cleaver Soul on Ice i. 51 Why'n't they kill some of them Uncle-Tomming m.f.'s?

1971 B. Malamud Tenants 165 The blacks have to murder you white MF's for cripplin our lives.

1973 S. Henderson Understanding New Black Poetry 44 I am not speaking merely of words like ‘nigger’ and ‘the big M.F.’, as Ron Welburn calls it.

1987 Newsweek 23 Mar. 61 He could stand out on the corner looking sharp as a MF in his Stacy-Adams wingtips.

1892 C. Thom & W. H. Jones Telegr. Connections 15/2 On one end of the condenser will usually be found a stamp like this: 2·5 M.F. The microfarad (for which M.F. stands) is the one-millionth part of a farad.

1911 L. W. Bishop Wireless Operators' Pocket-bk. v. 62 The highest capacity of a variable condenser should not be over ·004 mf.

1940 Chambers's Techn. Dict. 544/2 mF., μF., abbrev. for micro-farad.

1958 Times Rev. Industry May 32/1 Single phase 26V current in conjunction with a 1·5 mf tuning capacitor.

1961 Webster's 3rd New Internat. Dict. Eng. Lang. mf,..millifarad.

1997 Digest Techn. Papers (11th IEEE Pulsed Power Conf.) 2 1309 Each resonant charging system consists of a 2.4 mF primary capacitor bank, charged to 2.5 kV.