Wordnet Synset 13606121-n
http://lila-erc.eu/data/lexicalResources/LatinWordNet/id/LexicalConcept/13606121-n an entity of type: LexicalConcept
a unit of measurement of the refractive power of a lens which is equal to the reciprocal of the focal length measured in meters; used by oculists
Wordnet Synset 13606121-n