You can overdose on coffee if you drink about 30 cups in a brief period to get close to a lethal dosage of caffeine.
APLANATIC
aplanatic
(adjective) free from or corrected for spherical aberration; “an aplanatic mirror”
Source: WordNet® 3.1
Adjective
aplanatic (comparative more aplanatic, superlative most aplanatic)
(optics, of an optical system) Free from, or corrected for, spherical aberration and chromatic aberration
Anagrams
• antapical
Source: Wiktionary
Ap`la*nat"ic, a. Etym: [Gr. (Opt.)
Definition: Having two or more parts of different curvatures, so combined as to remove spherical aberration; -- said of a lens. Aplanatic focus of a lens (Opt.), the point or focus from which rays diverging pass the lens without spherical aberration. In certain forms of lenses there are two such foci; and it is by taking advantage of this fact that the best aplanatic object glasses of microscopes are constructed.
Source: Webster’s Unabridged Dictionary 1913 Edition
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21 April 2025
ENCYCLOPEDIA
(noun) a reference work (often in several volumes) containing articles on various topics (often arranged in alphabetical order) dealing with the entire range of human knowledge or with some particular specialty
Coffee Trivia
