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aplanat

Pronunciation: /ˈaplənat/
Definition of aplanat

noun

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

Derivatives

aplanatic

adjective

Origin:

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

aplanat in other Oxford dictionaries

Definition of aplanat in the US English dictionary

Nearby words

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