| Part of Speech | Definition | |
| Adjective | 1. Of or pertaining to iridium; -- applied specifically to compounds in which iridium has a low valence.[Websters]
2. Virtually never used base adjective of the rarely used adverb iridiously.[Eve - graph theoretic] | |
| Adverb Form (iridiously) | 1. Virtually never used adverbial inflection of the rarely used adjective iridious.[Eve - graph theoretic] | |
Source: Webster's Revised Unabridged Dictionary (1913), compiled from various sources, under license. | Top | |
Date "IRIDIOUS" was first used in popular English literature: sometime before 1914. (references) |
