411 REFERENCE · Wiktionary
Huygenian
Reference material by Wiktionary contributors. This retains its source identity and is not 411 news reporting.
English
Etymology
From en Huygens ian.
Adjective
Pertaining to, or invented by, Christiaan Huygens, a Dutch astronomer of the 17th century.
the Huygenian eyepiece
the Huygenian telescope
en eponyms