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hadrosaur

noun

hadrosaur is a noun meaning “Any ornithopod dinosaur of the family Hadrosauridae” (English Wiktionary, September 2026). It is spelled H-A-D-R-O-S-A-U-R, and it appears about once in every 47 million words in written English (wordfreq, 2021 data). The plural of hadrosaur is hadrosaurs.

What does hadrosaur mean?

noun

  1. 1

    Any ornithopod dinosaur of the family Hadrosauridae.

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

Forms of hadrosaur

  • hadrosaurs plural

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

How common is hadrosaur?

Hadrosaur appears about once in every 47 million words in written English, the 211,986th most frequent word form in the list.

Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).

Where does hadrosaur come from?

Back-formation from Hadrosauridae, from the type genus Hadrosaurus, which in turn was derived from Ancient Greek ἁδρός (hadrós, “strong”) + σαῦρος (saûros, “lizard”).

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).