noun, genitive Tri·an·gu·li [trahy-ang-gyuh-lahy]. /traɪˈæŋ gyəˌlaɪ/. Astronomy.
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Origin of Triangulum
Words nearby Triangulum
Example sentences from the Web for Triangulum
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