Arnoux's beaked whale


Ar·​noux's beaked whale
: an uncommon beaked whale (Berardius arnuxii) of temperate to subpolar waters of the southern hemisphere that has four teeth in the lower jaw and is closely related to Baird's beaked whale

called also southern four-toothed whale

Word History


after Louis Arnoux †1867 French marine surgeon and naturalist

Note: Arnoux was a naval surgeon aboard the corvette Le Rhin, which began a circumnavigation of the earth via the South Pacific in 1842. According to Louis Georges Duvernoy ("Mémoire sur les caractères ostéologiques des genres nouveaux ou des espèces nouvelles de cétacés vivants ou fossiles," Annales des sciences naturelles, Troisième série—Zoologie, tome 15 [1851], p. 52) Arnoux collected a skull and fin of the species on the beach at Akaroa, Banks Peninsula, New Zealand during the voyage of Le Rhin. The skull, delivered to the Muséum national d'histoire naturelle in Paris on October 20, 1846, through the efforts of Le Rhin's captain, Auguste Bérard, was the basis of Duvernoy's description and naming of the species, as Berardius arnuxii (Latinizations of both Bérard's and Arnoux's surnames).

First Known Use

1910, in the meaning defined above

Time Traveler
The first known use of Arnoux's beaked whale was in 1910

Love words?

You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Start your free trial today and get unlimited access to America's largest dictionary, with:

  • More than 250,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!

Dictionary Entries Near Arnoux's beaked whale


Arnoux's beaked whale


Cite this Entry

“Arnoux's beaked whale.” Dictionary, Merriam-Webster, Accessed 20 Jul. 2024.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!