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[trahy-ang-gyuh-luh m] /traɪˈæŋ gyə ləm/
noun, genitive Trianguli
[trahy-ang-gyuh-lahy] /traɪˈæŋ gyəˌlaɪ/ (Show IPA).
the Triangle, a northern constellation between Pisces and Perseus.
Origin of Triangulum
Borrowed into English from New Latin around 1545-55 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for Triangulum
Historical Examples
  • The Andromeda Nebula is apparently less advanced toward transformation into stellar bodies than is that in Triangulum.

    Curiosities of the Sky Garrett Serviss
  • Triangulum and Aries are two rather inconspicuous constellations that lie on, or close to, the meridian at this time.

    Astronomy for Young Folks Isabel Martin Lewis
  • Triangulum is a very ancient constellation, being formerly named Deltoton, from the Greek letter Delta Δ.

    A Field Book of the Stars William Tyler Olcott
British Dictionary definitions for Triangulum


noun (Latin genitive) Trianguli (traɪˈæŋɡjʊˌlaɪ)
a small triangular constellation in the N hemisphere, close to Perseus and Aries
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
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