Al·​deb·​a·​ran al-ˈde-bə-rən How to pronounce Aldebaran (audio)
: a red star of the first magnitude that is seen in the eye of Taurus and is the brightest star in the Hyades

Examples of Aldebaran in a Sentence

Recent Examples on the Web Nearby will be orangey Aldebaran, the brightest star in the constellation of Taurus and about 65 light-years from the solar system. Jamie Carter, Forbes, 29 Feb. 2024 The entire sky will be lit up with not only these planets and the moon, but also the Pleiades, Aldebaran and the Hyades star clusters, along with the Orion Nebula. Caralin Nunes, The Arizona Republic, 18 Jan. 2024 Robotics teams are therefore constrained by design choices that the original developers made (Aldebaran for Pepper, Italian Institute of Technology for iCub). Mark Paterson, The Conversation, 26 Jan. 2024 Then sweep clockwise to Procyon, the Gemini twins Pollux and Castor, Capella, Aldebaran and down to Rigel, Orion’s bright, blue-white foot. Lisa M. Krieger, The Mercury News, 23 Jan. 2024 There’s also Taurus the Bull, appearing as a little arrow pointing to the right, outlining the bull’s face with the reddish star Aldebaran marking the angry red eye of the beast. Mike Lynch, Twin Cities, 7 Jan. 2024 Now go up to orangey Aldebaran (not to be confused with the red planet Mars slightly further to the south), up again to bright white Capella, then turn back east to the two stars of Gemini—Castor and Pollux. Jamie Carter, Forbes, 30 Nov. 2023 The most famous is Boston Dynamics, which SoftBank bought from Google. Pepper, a humanoid robot created by Aldebaran, a French robotics firm acquired by SoftBank. IEEE Spectrum, 24 Sep. 2018

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'Aldebaran.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History


borrowed from Medieval Latin, borrowed from Arabic al-dabarān, probably a name for the Hyades star cluster

Note: Arabic usage is not uniform in regard to whether al-dabarān is to be interpreted as the star α Tauri, or the entire Hyades star cluster, though the phrase in the Almagest, translating Ptolemy's Greek text, suggests the latter. Arabic authors took dabarān as a derivative of the root d-b-r, with meanings related to "back" (hence dabarī "trailing behind"), on the grounds that the Hyades, along with α Tauri, trailed behind or followed the Pleiades. This has the appearance of an after-the-fact etymology, however, and dabarān may be a pre-Islamic name for the cluster, of unknown origin. See Paul Kunitzsch, Arabische Sternnamen in Europa (Wiesbaden, 1959) pp. 109-10.

First Known Use

14th century, in the meaning defined above

Time Traveler
The first known use of Aldebaran was in the 14th century

Dictionary Entries Near Aldebaran

Cite this Entry

“Aldebaran.” Dictionary, Merriam-Webster, Accessed 16 Jun. 2024.

Kids Definition


Al·​deb·​a·​ran al-ˈdeb-ə-rən How to pronounce Aldebaran (audio)
: a very bright red star in Taurus

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