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We found 10 dictionaries with English definitions that include the word hesperornis: Click on the first link on a line below to go directly to a page where "hesperornis" is defined. General (9 matching dictionaries) hesperornis: Wordnik [home, info] hesperornis: Infoplease Dictionary [home, info] Hesperornis, hesperornis: Dictionary.com [home, info] Hesperornis: Wikipedia, the Free Encyclopedia [home, info] Hesperornis: Online Plain Text English Dictionary [home, info] hesperornis: Webster's Revised Unabridged, 1913 Edition [home, info] Hesperornis: AllWords.com Multi-Lingual Dictionary [home, info] hesperornis: Free Dictionary [home, info] Hesperornis: Dictionary/thesaurus [home, info] Medicine (1 matching dictionary) hesperornis: online medical dictionary [home, info]

Quick definitions (hesperornis) (n.) A genus of large, extinct, wingless birds from the Cretaceous deposits of Kansas, belonging to the Odontornithes. They had teeth, and were essentially carnivorous swimming ostriches. Several species are known. See Illust. in Append. (This definition is from the 1913 Webster's Dictionary and may be outdated.)