semi-directadj.

Etymology: semi- prefix 1a(a).Previous versions of the OED give the stress as: semi-diˈrect.

Not wholly direct; spec. (of lighting) so disposed that most but not all of the light reaches the illuminated area without first being reflected.

ΚΠ

1914 S. C. Batstone Electric-light Fitting viii. 166 If a frosted glass bowl or something of a similar nature be placed between the lamps and the surface or space to be illuminated, the result is ‘semi-direct lighting’.

1923 J. S. Huxley Ess. Biologist i. 15 We can learn a great deal from the semi-direct methods of paleontology.

1957 Encycl. Brit. XIV. 107/2 Semidirect [lighting equipment]..10–40 [% upward]... 60–90 [% downward].

1971 M. B. Powell & G. Higman Finite Simple Groups viii. 294 We form the semi-direct product GI.

This entry has not yet been fully updated (first published 1986; most recently modified version published online June 2019).

单词	semi-direct
释义	semi-directadj. Etymology: semi- prefix 1a(a).Previous versions of the OED give the stress as: semi-diˈrect. Not wholly direct; spec. (of lighting) so disposed that most but not all of the light reaches the illuminated area without first being reflected. ΚΠ 1914 S. C. Batstone Electric-light Fitting viii. 166 If a frosted glass bowl or something of a similar nature be placed between the lamps and the surface or space to be illuminated, the result is ‘semi-direct lighting’. 1923 J. S. Huxley Ess. Biologist i. 15 We can learn a great deal from the semi-direct methods of paleontology. 1957 Encycl. Brit. XIV. 107/2 Semidirect [lighting equipment]..10–40 [% upward]... 60–90 [% downward]. 1971 M. B. Powell & G. Higman Finite Simple Groups viii. 294 We form the semi-direct product GI. This entry has not yet been fully updated (first published 1986; most recently modified version published online June 2019). < adj.1914
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