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aplanat

Syllabification: (ap·la·nat)
Pronunciation: /ˈapləˌnat/
Definition of aplanat

noun

Physics
  • a reflecting or refracting surface that is free from spherical aberration.

Derivatives

aplanatic

Pronunciation: /ˌapləˈnatik/
adjective

Origin:

late 19th century: coined in German from Greek aplanētos 'free from error', from a- 'not' + planan 'wander'

aplanat in other Oxford dictionaries

Definition of aplanat in the British & World English dictionary

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