411 REFERENCE · Wiktionary
Cassegrainian
Reference material by Wiktionary contributors. This retains its source identity and is not 411 news reporting.
English
Etymology
From en fr:Cassegrain ian.
Adjective
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Of or relating to Laurent Cassegrain (ca. 1629—1693), Catholic priest remembered as the probable inventor of the Cassegrain reflector, a folded two-mirror reflecting telescope.
en eponyms