Triangulum

American  

[trahy-ang-gyuh-luhm] / traɪˈæŋ gyə ləm /

noun

Astronomy.

genitive

Trianguli

1. the Triangle, a northern constellation between Pisces and Perseus.

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Triangulum British  

/ traɪˈæŋɡjʊləm /

noun

1. a small triangular constellation in the N hemisphere, close to Perseus and Aries

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Etymology

Origin of Triangulum

Borrowed into English from New Latin around 1545–55

Example Sentences

Only a few spirals—such as the Andromeda and Triangulum Galaxies and M81—all of which are now known to be our close neighbors, turned out to be approaching us.

From Textbooks • Oct. 13, 2016

Faced with incomprehensible distances, intimidating mathematics and names like Triangulum Australe, the temptation is to do one's stargazing on the Tonight show.

From Time Magazine Archive

Dr. Edwin Hubble of Mount Wilson Observatory for measurement of the distance to two remote spiral nebulae in Andromeda and Triangulum.

From Time Magazine Archive

It needs, for instance, but a glance at the Triangulum monster to convince the observer that it cannot be a solar system which is being evolved there, but rather a swarm of stars.

From Curiosities of the Sky by Serviss, Garrett Putman

One would say that if the terrific coil in Triangulum has all but destroyed itself in its fury, this one on the contrary has just begun its self-demolition.

From Curiosities of the Sky by Serviss, Garrett Putman