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Rightabout

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• Right-about-face

  or rightabout-face, right-about-face noun 1. Military. a command, given to a soldier or soldiers at attention, to turn the body about toward the right so as to face in the opposite direction. the act of so turning in a prescribed military manner. 2. rightabout (def 2). 3. any complete reversal, as of conduct or opinion.

• Right-angle

  noun 1. the angle formed by two radii of a circle that are drawn to the extremities of an arc equal to one quarter of the circle; the angle formed by two perpendicular lines that intersect; an angle of 90°. noun 1. the angle between two radii of a circle that cut off on the […]

• Right-ascension

  noun, Astronomy. 1. the arc of the celestial equator measured eastward from the vernal equinox to the foot of the great circle passing through the celestial poles and a given point on the celestial sphere, expressed in degrees or hours. right ascension noun 1. (astronomy) the angular distance measured eastwards along the celestial equator from […]

• Right as rain

  In good order or good health, satisfactory, as in He was very ill, but he’s right as rain now, or If she’d only worked on it another week everything would have been as right as rain. The allusion in this simile is unclear, but it originated in Britain, where rainy weather is a normal fact […]

• Right atrioventricular valve

  right atrioventricular valve n. See tricuspid valve.

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