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Tuesday - December 11, 2018

In my view, the Christian religion is the most important and one of the first things in which all children, under a free government ought to be instructed... No truth is more evident to my mind than that the Christian religion must be the basis of any government intended to secure the rights and privileges of a free people.
- Preface

1828 Noah Webster Dictionary
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1828.mshaffer.comWord [achromatic]

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achromatic

ACHROMAT'IC, a. [Gr. priv. and color.]

Destitute of color. achromatic telescopes are formed of a combination of lenses, which separate the variously color rays of light to equal angles of divergence, at different angles of refraction of the mean ray. In this case, the rays being made to refract towards contrary parts, the whole ray is caused to deviate from its course, without being separated into colors, and the optical aberration arising from the various colors of light, is prevented. This telescope is an invention of Dolland.



Evolution (or devolution) of this word [achromatic]

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ACHROMAT'IC, a. [Gr. priv. and color.]

Destitute of color. achromatic telescopes are formed of a combination of lenses, which separate the variously color rays of light to equal angles of divergence, at different angles of refraction of the mean ray. In this case, the rays being made to refract towards contrary parts, the whole ray is caused to deviate from its course, without being separated into colors, and the optical aberration arising from the various colors of light, is prevented. This telescope is an invention of Dolland.

A-CHRO-MAT'IC, a. [Gr. α privative and χρωμα, color.]

Destitute of color. Achromatic telescopes are formed of a combination of lenses, which separate the variously colored rays of light to equal angles of divergence, at different angles of refraction of the mean ray. In this case, the rays being made to refract towards contrary parts, the whole ray is caused to deviate from its course, without being separated into colors, and the optical aberration arising from the various colors of light, is prevented. This telescope is an invention of Dollond. – Nicholson.


Ach`ro*mat"ic
  1. Free from color; transmitting light without decomposing it into its primary colors.
  2. Uncolored; not absorbing color from a fluid; -- said of tissue.

    Achromatic lens (Opt.), a lens composed usually of two separate lenses, a convex and concave, of substances having different refractive and dispersive powers, as crown and flint glass, with the curvatures so adjusted that the chromatic aberration produced by the one is corrected by other, and light emerges from the compound lens undecomposed. -- Achromatic prism. See Prism. -- Achromatic telescope, or microscope, one in which the chromatic aberration is corrected, usually by means of a compound or achromatic object glass, and which gives images free from extraneous color.

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Achromatic

ACHROMAT'IC, adjective [Gr. priv. and color.]

Destitute of color. achromatic telescopes are formed of a combination of lenses, which separate the variously color rays of light to equal angles of divergence, at different angles of refraction of the mean ray. In this case, the rays being made to refract towards contrary parts, the whole ray is caused to deviate from its course, without being separated into colors, and the optical aberration arising from the various colors of light, is prevented. This telescope is an invention of Dolland.

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Word of the Day

importance

IMPORT'ANCE, n.

1. Weight; consequence; a bearing on some interest; that quality of any thing by which it may affect a measure, interest or result. The education of youth is of great importance to a free government. A religious education is of infinite importance to every human being.

2. Weight or consequence in the scale of being.

Thy own importance know.

Nor bound thy narrow views to things below.

3. Weight or consequence in self-estimation.

He believes himself a man of importance.

4. Thing implied; matter; subject; importunity. [In these senses, obsolete.]

Random Word

artillery

ARTIL'LERY, n. This word has no plural.

1. In a general sense, offensive weapons of war. Hence it was formerly used for bows and arrows.

And Jonathan gave his artillery to his lad. 1Sam. 20.

But in present usage, appropriately,

2. Canon; great guns; ordinance, including guns, mortars and grenades, with their furniture of carriages, balls, bombs and shot of all kinds.

3. In a more extended sense, the word includes powder, cartridges, matches, utensils, machines of all kinds, and horses that belong to a train of artillery.

4. The men who manage cannon and mortars, including matrosses, gunners, bombardiers, cannoniers, or by whatever name they are called, with the officers, engineers and persons who supply the artillery with implements and materials.

Noah's 1828 Dictionary

First dictionary of the American Language!

Noah Webster, the Father of American Christian education, wrote the first American dictionary and established a system of rules to govern spelling, grammar, and reading. This master linguist understood the power of words, their definitions, and the need for precise word usage in communication to maintain independence. Webster used the Bible as the foundation for his definitions.

This standard reference tool will greatly assist students of all ages in their studies.

No other dictionary compares with the Webster's 1828 dictionary. The English language has changed again and again and in many instances has become corrupt. The American Dictionary of the English Language is based upon God's written word, for Noah Webster used the Bible as the foundation for his definitions. This standard reference tool will greatly assist students of all ages in their studies. From American History to literature, from science to the Word of God, this dictionary is a necessity. For homeschoolers as well as avid Bible students it is easy, fast, and sophisticated.


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1828 Noah Webster Dictionary

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