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This tool relates English terms to concepts from the
SUMO
ontology by means of mappings to
WordNet synsets.
Gloss: (optics) condition of an optical system (as a lens) in which light rays from a single point converge in a single focal point
hypernym 113920835 - condition, status
domain topic 106100778 - optics
derivationally related 302621609 - anastigmatic, stigmatic
antonym 113938899 - astigmatism, astigmia
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