Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
anastigmat is a noun meaning "compound lens or lens system designed to be free of astigmatism and able to form approximately point images". It carries one recorded sense.
compound lens or lens system designed to be free of astigmatism and able to form approximately point images
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for anastigmat come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.