defocusv.
/diːˈfəʊkəs/ transitive. To put out of focus; also intransitive, to go out of focus.
ΘΚΠ
the world > physical sensation > sight and vision > invisibility > be or become invisible [verb (intransitive)] > become indistinct
slubber1665
film1877
fuzz1930
defocus1955
the world > physical sensation > sight and vision > invisibility > make invisible [verb (transitive)] > make indistinct
overcloudc1550
fog?1592
blura1616
soften1672
obumbilatea1711
slur1782
haze1801
veil1843
fuzz1907
defocus1955
1955 Gloss. Terms Automatic Digital Computers (B.S.I.) 9 The ‘writing’ beam is initially defocused so as to excite a small circular area of the screen.
1961 G. Millerson Technique Television Production iii. 49 The director's only solution is..to have cameras defocus when their shots are not being taken.
Derivatives
deˈfocused adj. (also de'focussed)
ΚΠ
1935 Proc. IRE 23 1338 A defocused beam will cause..spot or pattern distortion.
1950 H. Pender Electr. Engineers' Handbk. (ed. 4) II. 66 The apparent resolution is not appreciably impaired when the blue image is severely defocused.
1958 Engineering 21 Feb. 233/2 A more pleasing effect was obtained with the circular soft edged arrangement than with a de-focused primary beam.
This entry has not yet been fully updated (first published 1972; most recently modified version published online September 2018).
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v.1935