aplanatic

1. 1.

   free from or corrected for spherical aberration

   “an aplanatic mirror”

   Similarcorrected

   optics

Questions about aplanatic

What does aplanatic mean?

aplanatic means "free from or corrected for spherical aberration".

How many syllables are in aplanatic?

aplanatic has 4 syllables and divides as a-pla-na-tic under the regular spelling rules. It is not in the CMU Pronouncing Dictionary, so that comes from how the word is written rather than from a recorded pronunciation, and no stress or phonetic transcription is claimed for it.

Is aplanatic a common word?

aplanatic is banded "Uncommon" — turns up in careful writing rather than conversation. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.