Definition of Refractors

1. Noun. (plural of refractor) ¹

¹ Source:

Definition of Refractors

1. refractor [n] - See also: refractor

Refractors Pictures

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Lexicographical Neighbors of Refractors

refractive keratoplasty
refractive keratotomy
refractors (current term)
refractory anaemia
refractory anaemia with excess blasts
refractory anemia
refractory cast
refractory flask
refractory lining
refractory metal
refractory metals
refractory period of electronic pacemaker
refractory pot
refractory rhyme

Literary usage of Refractors

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

1. Nature by Norman Lockyer (1878)
"Newtonian observers cannot understand how those who observe with refractors or Cassegrain reflectors can bear to strain their neck so in looking up through ..."

2. Elements of Descriptive Astronomy: A Text-book by Herbert Alonzo Howe (1897)
"refractors and Reflectors. — There are two kinds of telescopes, called respectively refractors and reflectors. Opera-glasses and spyglasses belong to the ..."

3. Appletons' Annual Cyclopædia and Register of Important Events of the Year (1899)
"the Fresnel refractors have been made to give a higher coefficient of beam. Charles A. Stevenson's improvements on the Fresnel lens have been introduced in ..."

4. The Geography of the Heavens: And Class-book of Astronomy : Accompanied by a by Elijah Hinsdale Burritt, Hiram Mattison (1860)
"TELESCOPES—refractors AND REFLECTORS. 683. A TELESCOPE is an optical instrument employed in viewing distant objects, especially the heavenly bodies. ..."

5. Cosmos: A Sketch of a Physical Description of the Universe by Alexander Von Humboldt, Benjamin Horatio Paul, William Sweetland Dallas, Elise C. Otté (1852)
"... again turned the scale in favour of refractors. The apparently incontestable rights of priority of the mysterious Chester More Hall, of Essex (1729), ..."

6. The Transactions of the Royal Irish Academy by Royal Irish Academy (1837)
"Combinations of Reflectors or refractors. Compound and Component Combinations. 11. Let us now endeavour to improve our theory of the characteristic and ..."

7. A Rudimentary Treatise on the History, Construction and Illumination of by Alan Stevenson (1850)
"... of a polygonal hoop, consisting of a series of refractors, infinitely small in their length and having their axes in planes parallel to the horizon. ..."

8. Astronomical Register (1874)
"The admirers of refractors will not yield an inch of ground, and the partisans of reflectors ... The upholders of refractors see nothing good in reflectors, ..."

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