off-axisadj.adv.

Brit.

/ˌɒfˈaksɪs/, U.S.

/ˈɔfˈæksəs/,

/ˈɑfˈæksəs/

Origin: Formed within English, by derivation. Etymons: off- prefix, axis n.¹

Etymology: < off- prefix + axis n.¹ With sense A. compare on-axis adj. at on- prefix 2.

A. adj.

Situated or occurring away from an axis (in various senses).

ΘΚΠ

the world > matter > physics > science of sound > sound-waves > [adjective] > away from axis

off-axis1939

the world > space > relative position > central condition or position > [adjective] > situated in the centre or middle > situated on the axis > situated away from an axis

off-axis1939

1939 Sci. Amer. Aug. 120/2 The ‘off-axis’ type..is exceedingly useful in practice because, with this arrangement, the photographic plate or film may be placed outside the light beam.

1958 Van Nostrand's Sci. Encycl. (ed. 3) 380/1 Rays from an off-axis point through any zone of a lens meet the focal plane in a comatic circle.

1971 J. H. Richardson Optical Microsc. for Materials Sci. i. 47 Even though a lens may be spherically corrected for objects situated on the microscope axis, spherical aberration may exist for off-axis objects.

1990 Gramophone May 2106/4 Off-axis listening revealed a fairly steep loss of treble and this made placement for optimum stereo quite critical.

2000 P. W. B. Semmens & A. J. Goldfinch How Steam Locomotives really Work v. 177 This lack of linearity produces an off-axis force on the piston rod.

B. adv.

Away from an axis.

ΘΚΠ

the world > matter > physics > science of sound > sound-waves > [adverb]

off-axis1962

1962 A. Nisbett Technique Sound Studio ii. 36 Place the second person just the same amount off-axis in the other direction.

1973 Optical Engin. 12 20/2 A 1 mm diameter pinhole in 1·5 mm lead severely vignettes the field off-axis.

1990 Gramophone May 2099/3 The usual pink noise test with one loudspeaker sited well out into the room revealed a smooth dispersion in the lateral plane, the response falling off gently as one moved significantly off axis.

This entry has been updated (OED Third Edition, March 2004; most recently modified version published online March 2022).

单词	off-axis
释义	off-axisadj.adv. Brit. /ˌɒfˈaksɪs/, U.S. /ˈɔfˈæksəs/, /ˈɑfˈæksəs/ Origin: Formed within English, by derivation. Etymons: off- prefix, axis n.¹ Etymology: < off- prefix + axis n.¹ With sense A. compare on-axis adj. at on- prefix 2. A. adj. Situated or occurring away from an axis (in various senses). ΘΚΠ the world > matter > physics > science of sound > sound-waves > [adjective] > away from axis off-axis1939 the world > space > relative position > central condition or position > [adjective] > situated in the centre or middle > situated on the axis > situated away from an axis off-axis1939 1939 Sci. Amer. Aug. 120/2 The ‘off-axis’ type..is exceedingly useful in practice because, with this arrangement, the photographic plate or film may be placed outside the light beam. 1958 Van Nostrand's Sci. Encycl. (ed. 3) 380/1 Rays from an off-axis point through any zone of a lens meet the focal plane in a comatic circle. 1971 J. H. Richardson Optical Microsc. for Materials Sci. i. 47 Even though a lens may be spherically corrected for objects situated on the microscope axis, spherical aberration may exist for off-axis objects. 1990 Gramophone May 2106/4 Off-axis listening revealed a fairly steep loss of treble and this made placement for optimum stereo quite critical. 2000 P. W. B. Semmens & A. J. Goldfinch How Steam Locomotives really Work v. 177 This lack of linearity produces an off-axis force on the piston rod. B. adv. Away from an axis. ΘΚΠ the world > matter > physics > science of sound > sound-waves > [adverb] off-axis1962 1962 A. Nisbett Technique Sound Studio ii. 36 Place the second person just the same amount off-axis in the other direction. 1973 Optical Engin. 12 20/2 A 1 mm diameter pinhole in 1·5 mm lead severely vignettes the field off-axis. 1990 Gramophone May 2099/3 The usual pink noise test with one loudspeaker sited well out into the room revealed a smooth dispersion in the lateral plane, the response falling off gently as one moved significantly off axis. This entry has been updated (OED Third Edition, March 2004; most recently modified version published online March 2022). < adj.adv.1939
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