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English Dictionary - With Multi-Lingual Search Definitions ortho- prefix  straight, right, proper (chemistry) Having an extra proportion of water (chemistry) in isomeric benzene derivatives, having the two substituents in adjacent positions (compare meta- and para-) (physics) of any molecule of the form X2 in which the two nuclei have parallel spin Etymology: :from á (orthos)        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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