sinusoidaladj.

/sʌɪnəˈsɔɪdəl/

Etymology: < sinusoid n. + -al suffix¹; compare French sinusoïdal.

1. Resembling, pursuing, flowing in, the wave-like course of a sinusoid; having the form of a sinusoid; varying periodically (with time, distance, etc.) as a sine varies with an angle; (see also quot. 1910).

ΘΚΠ

the world > matter > physics > mechanics > types of motion > [adjective] > types of wave generally

sinusoidal1878

incoherent1929

the world > relative properties > number > geometry > curve > [adjective] > other

caustic1728

hypotrochoidal1843

hodographic1847

Pippian1857

tetrazomal1867

trizomal1867

three-bar1875

sinusoidal1878

the world > matter > physics > electromagnetic radiation > electricity > electric current > flow of electricity > [adjective] > like a sinusoid

sinusoidal1900

1878 Mayer Sound 64 Hold the glass up to the light, and you will see a delicate wavy line, a sinusoidal trace.

1879 G. B. Prescott Speaking Telephone (new ed.) 54 The curve expressive of a simple pendulous vibration—that is a sinusoidal curve.

1900 Lancet 1 Dec. 1580/1 These patients have all been treated with the electrical bath and the sinusoidal current.

1910 Hawkins' Electr. Dict. 400/2 Sinusoidal alternator, an alternating current dynamo which generates simple harmonic or sinusoidal currents.

1948 Nature 28 Feb. 295/1 Along with the detailed solutions of the differential equations for step velocity input..is given a brief development of the solutions for sinusoidal input.

1957 G. E. Hutchinson Treat. Limnol. I. v. 357 The height of the wave at first decreases slightly, then increases as the wave approaches breaking. During the final phase of the rise in height, the sinusoidal or trochoidal form is lost.

1975 Nature 23 Oct. 674/1 Patterns of alternating light and dark bars with a sinusoidal luminance profile across the bars—sinusoidal gratings—are commonly used to study spatial interactions in the visual system.

2. Designating a form of map projection in which parallels of latitude have the correct length (to scale) and meridians are spaced correctly along them, resulting in the meridians having a sinusoidal form.

ΚΠ

1890 Cent. Dict. at Projection Sinusoidal map-projection.

1969 G. C. Dickinson Maps & Air Photographs i. 17 If a map can be broken in some areas that do not matter—the oceans if map is needed mainly for continental areas, or vice versa—and the meridians gathered together at several ‘central’ meridians the good qualities of the ‘central’ areas are more widely spread. Fig. 4F shows such an interrupted sinusoidal projection.

Derivatives

sinuˈsoidally adv.

ΘΚΠ

the world > relative properties > number > geometry > curve > [adverb]

cycloidally1728

elliptically1831

hodographically1847

trochoidally1857

sinusoidally1888

the world > matter > physics > mechanics > types of motion > [adverb] > types of wave

sinusoidally1888

incoherently1938

the world > matter > physics > electromagnetic radiation > electricity > electric current > flow of electricity > [adverb]

sinusoidally1888

1888 London, Edinb., & Dublin Philos. Mag. 5th Ser. 26 373 Let f vary sinusoidally with the time.

1929 J. A. Ratcliffe Physical Princ. Wireless i. 3 The simplest form of alternating current is one in which the current varies sinusoidally with the time.

1947 Jrnl. Inst. Electr. Engineers 94 iii. 279/1 When the hemispherical end of a reproducing stylus is moved in contact with a sinusoidal surface of comparable curvature, the stylus tip does not itself move sinusoidally.

1974 Sci. Amer. Nov. 34/3 Voltages and current vary sinusoidally at a frequency of 60 hertz (cycles per second) in the U.S. and Canada and 50 hertz in most other countries of the world.

This entry has not yet been fully updated (first published 1911; most recently modified version published online September 2019).

单词	sinusoidal
释义	sinusoidaladj. /sʌɪnəˈsɔɪdəl/ Etymology: < sinusoid n. + -al suffix¹; compare French sinusoïdal. 1. Resembling, pursuing, flowing in, the wave-like course of a sinusoid; having the form of a sinusoid; varying periodically (with time, distance, etc.) as a sine varies with an angle; (see also quot. 1910). ΘΚΠ the world > matter > physics > mechanics > types of motion > [adjective] > types of wave generally sinusoidal1878 incoherent1929 the world > relative properties > number > geometry > curve > [adjective] > other caustic1728 hypotrochoidal1843 hodographic1847 Pippian1857 tetrazomal1867 trizomal1867 three-bar1875 sinusoidal1878 the world > matter > physics > electromagnetic radiation > electricity > electric current > flow of electricity > [adjective] > like a sinusoid sinusoidal1900 1878 Mayer Sound 64 Hold the glass up to the light, and you will see a delicate wavy line, a sinusoidal trace. 1879 G. B. Prescott Speaking Telephone (new ed.) 54 The curve expressive of a simple pendulous vibration—that is a sinusoidal curve. 1900 Lancet 1 Dec. 1580/1 These patients have all been treated with the electrical bath and the sinusoidal current. 1910 Hawkins' Electr. Dict. 400/2 Sinusoidal alternator, an alternating current dynamo which generates simple harmonic or sinusoidal currents. 1948 Nature 28 Feb. 295/1 Along with the detailed solutions of the differential equations for step velocity input..is given a brief development of the solutions for sinusoidal input. 1957 G. E. Hutchinson Treat. Limnol. I. v. 357 The height of the wave at first decreases slightly, then increases as the wave approaches breaking. During the final phase of the rise in height, the sinusoidal or trochoidal form is lost. 1975 Nature 23 Oct. 674/1 Patterns of alternating light and dark bars with a sinusoidal luminance profile across the bars—sinusoidal gratings—are commonly used to study spatial interactions in the visual system. 2. Designating a form of map projection in which parallels of latitude have the correct length (to scale) and meridians are spaced correctly along them, resulting in the meridians having a sinusoidal form. ΚΠ 1890 Cent. Dict. at Projection Sinusoidal map-projection. 1969 G. C. Dickinson Maps & Air Photographs i. 17 If a map can be broken in some areas that do not matter—the oceans if map is needed mainly for continental areas, or vice versa—and the meridians gathered together at several ‘central’ meridians the good qualities of the ‘central’ areas are more widely spread. Fig. 4F shows such an interrupted sinusoidal projection. Derivatives sinuˈsoidally adv. ΘΚΠ the world > relative properties > number > geometry > curve > [adverb] cycloidally1728 elliptically1831 hodographically1847 trochoidally1857 sinusoidally1888 the world > matter > physics > mechanics > types of motion > [adverb] > types of wave sinusoidally1888 incoherently1938 the world > matter > physics > electromagnetic radiation > electricity > electric current > flow of electricity > [adverb] sinusoidally1888 1888 London, Edinb., & Dublin Philos. Mag. 5th Ser. 26 373 Let f vary sinusoidally with the time. 1929 J. A. Ratcliffe Physical Princ. Wireless i. 3 The simplest form of alternating current is one in which the current varies sinusoidally with the time. 1947 Jrnl. Inst. Electr. Engineers 94 iii. 279/1 When the hemispherical end of a reproducing stylus is moved in contact with a sinusoidal surface of comparable curvature, the stylus tip does not itself move sinusoidally. 1974 Sci. Amer. Nov. 34/3 Voltages and current vary sinusoidally at a frequency of 60 hertz (cycles per second) in the U.S. and Canada and 50 hertz in most other countries of the world. This entry has not yet been fully updated (first published 1911; most recently modified version published online September 2019). < adj.1878
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