• synonyms


[awr-nuh-thuh-ring-kuh s]
  1. the platypus.
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Origin of ornithorhynchus

1790–1800; < New Latin: genus name, equivalent to ornitho- ornitho- + -rhynchus < Greek rhýnchos bill
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for ornithorhynchus

Historical Examples

  • Sometimes, as in the Ornithorhynchus, the meniscus is absent.

    Encyclopaedia Britannica, 11th Edition, Volume 15, Slice 5


  • Here we find the curious egg-laying mammal, Ornithorhynchus.

  • In Ornithorhynchus the zygomatic arch is much stouter than in Echidna.

    The Vertebrate Skeleton

    Sidney H. Reynolds

  • The acetabulum is perforated in Echidna as in birds, but not in Ornithorhynchus.

    The Vertebrate Skeleton

    Sidney H. Reynolds

  • The interclavicle is absent from all mammals except Echidna and Ornithorhynchus.

    Dragons of the Air

    H. G. Seeley

British Dictionary definitions for ornithorhynchus


  1. the technical name for duck-billed platypus
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Word Origin

C19: New Latin, from ornitho- + Greek rhunkhos bill
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012