Tri·​an·​gu·​lum | \ trī-ˈaŋ-gyə-ləm How to pronounce Triangulum (audio) \

Definition of Triangulum

: a small northern constellation that is visible between the constellations of Andromeda and Aries and that is represented by the figure of an isosceles triangle Triangulum: A small constellation, its name comes from its three brightest stars, which form a long and narrow triangle.— Graham Henry, South Wales Echo, 20 Jan. 2012

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First Known Use of Triangulum

1695, in the meaning defined above

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The first known use of Triangulum was in 1695

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Cite this Entry

“Triangulum.” Dictionary, Merriam-Webster, Accessed 4 Dec. 2020.

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