411 REFERENCE · Wiktionary
Antoniadi scale
Reference material by Wiktionary contributors. This retains its source identity and is not 411 news reporting.
English
Etymology
Named for Eugène Michel Antoniadi (1870-1944), who invented it.
Proper noun
en astronomy a scale of seeing conditions used by amateur astronomers.
See also
Anagrams
en aaacdeiilnnost decanalisation
en eponyms