English Explanatory Dictionary

Coddington magnifier

English dictionary entry

Meanings

noun
  1. A magnifying glass consisting of a single thick lens with a central deep groove diaphragm at the equator, limiting the rays to those close to the axis and minimizing spherical aberration.

Word forms

Coddington magnifier Coddington magnifiers

Etymology

Popularized and refined by Henry Coddington.

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