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Words related to tangential

tan·gen·tial
T t

  • tangential motion

    the component of the linear motion of a star with respect to the sun, measured along a line perpendicular to its line of sight and expressed in miles or kilometers per second.

  • couette flow

    the flow of a fluid between two surfaces that have tangential relative motion, as of a liquid between two coaxial cylinders that have different angular velocities.

  • footnote

    an explanatory or documenting note or comment at the bottom of a page, referring to a specific part of the text on the page.

  • huygens principle

    the principle that all points on a wave front of light are sources of secondary waves and that surfaces tangential to these waves define the position of the wave front at any point in time.

  • proper motion

    Astronomy. the angular motion of a star relative to a suitably defined frame of reference, expressed in seconds of arc per year.

  • radial motion

    the component of the motion of a star away from or toward the earth along its line of sight, expressed in miles or kilometers per second and determined by the shift in the wavelength of light emitted by the star.
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