¹ *Source: wiktionary.com*

### Definition of Semidiameters

**1.** semidiameter [n] - See also: semidiameter

### Semidiameters Pictures

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### Lexicographical Neighbors of Semidiameters

### Literary usage of Semidiameters

Below you will find example usage of this term as found in modern and/or classical literature:

**1.** *A Manual of Spherical and Practical Astronomy: Embracing the General* by William Chauvenet (1874)

"... A = h' — D' or, when the star has been referred to a point nearer than the
visible horizon, h = h' - D" **semidiameters** OF CELESTIAL BODIES. 128. ..."**2.** *A Manual of Spherical and Practical Astronomy: Embracing the General* by William Chauvenet (1900)

"... THE MEAN **semidiameters** OF THE PLANETS. 435. The apparent equatorial semidiameter
of a planet when its distance from the earth is equal to the earth's ..."**3.** *Text-book on Practical Astronomy* by George Leonard Hosmer (1917)

"1.9619 9i".6 The discs of the sun and moon are circular, and their angular
**semidiameters** are given for each day in the Ephemeris. ..."**4.** *A Treatise on Some New Geometrical Methods* by James Booth (1873)

"Two **semidiameters** of a conic section and the chord joining their extremities
contain a given area. The cume enveloped by this chord is a similar conic ..."**5.** *A Treatise on the Analytical Geometry of the Point, Line, Circle, and Conic* by John Casey (1893)

"If any tangent meets two conjugate **semidiameters** of an ellipse, the rectangle
under its segments is equal to the square of the parallel semi- diameter. 3. ..."**6.** *The Mathematical Theory of Eclipses According to Chauvenet's Transformation* by Roberdeau Buchanan (1904)

"The **semidiameters** and Parallaxes.—The values of these given by CHAUVENET, on page
438, seem to need revision, the moon's least parallax being in error by at ..."**7.** *A Treatise on the Analytical Geometry of the Point, Line, Circle, and Conic* by John Casey (1893)

"If any tangent meets two conjugate **semidiameters** of an ellipse, the rectangle
under its segments is equal to the square of the parallel semi- diameter. 3. ..."