Associations to the word «Aplanatic»
Wiktionary
APLANATIC, adjective. (optics) (of an optical system) Free from, or corrected for, spherical aberration and chromatic aberration
Dictionary definition
APLANATIC, adjective. Free from or corrected for spherical aberration; "an aplanatic mirror".
Wise words
Kind words can be short and easy to speak, but their echoes
are truly endless.