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English Dictionary - With Multi-Lingual Search Definitions Antoniadi scale proper noun  (astronomy) a scale of seeing conditions used by amateur astronomers. Its categories are: I - perfect, without a quiver II - slight undulations, but with calm periods lasting several seconds III - moderate, with some greater air movements IV - poor, with the image in constant movement V - very bad, making observation difficult Etymology: Named for w:Eugène Michel Antoniadi, Eugène Michel Antoniadi, who invented it.        Find:   Words Starting With:   Words Ending With:   Words Containing:   Words That Match:    Translate Into:    Dutch   French   German    Italian   Spanish     Show 51015202550 results per page. Enter your search terms Submit search form   Web www.allwords.com Browse the Dictionary A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

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