Al·​deb·​a·​ran | \ al-ˈde-bə-rən How to pronounce Aldebaran (audio) \

Definition of Aldebaran

: a red star of the first magnitude that is seen in the eye of Taurus and is the brightest star in the Hyades

First Known Use of Aldebaran

14th century, in the meaning defined above

History and Etymology for Aldebaran

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.

Learn More About Aldebaran

Time Traveler for Aldebaran

Time Traveler

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

See more words from the same century

Dictionary Entries Near Aldebaran




See More Nearby Entries 

Statistics for Aldebaran

Cite this Entry

“Aldebaran.” Dictionary, Merriam-Webster, Accessed 7 Dec. 2021.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon


Test Your Vocabulary

Name that Thing: Flower Edition

True or False

Test your knowledge - and maybe learn something along the way.

Love words? Need even more definitions?

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