Achromatic is a 10 letter English word. It's valid Words with friends word worth 21 points.
You can make 516 anagrams from letters in achromatic (aacchimort).
First recorded in 1760-70; a-6 + chromatic
The bands are then achromatic in the sense that the ordinary telescope is so.
achromatic: free from color; tissue that does not stain readily.
If not, the substitution of an achromatic lens will be of no advantage.
Given the achromatic object-glass, why should not it be divided?
Each instrument carries six, five of which can be attached at pleasure either to the catadioptric or the achromatic.
An achromatic grating, however, is (rashly speaking) an impossibility.
The achromatic doublets have a very large, clear and flat field.
Fourthly, there is the contrast of colour and neutrality, the chromatic and achromatic, or hue and shade.
Thus it is proved beyond all question that the lenses of the eye do not form an achromatic combination.
This object-glass is under corrected in point of colour, and wants to be made longer in the focus to be achromatic.
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