ultra-diffuse
Word Rarity
Rare
Frequency: Zipf frequency 3.23 in modern English
19
Scrabble Score
12
Letters
6
Syllables
10
Unique Chars
Meaning
adj
Specifically, designating a type of galaxy with a very low proportion of visible stars compared to the Milky Way, and hence a very low luminosity.
Example Sentences
- "In the next sections we study the properties of galaxies that satisfy our criteria to be ultra diffuse, and consider the contribution from galaxies in the fore- and background using the CFHTLS fields."
- "The galaxy, called NGC1052-DF2, is about 65 million light years away. It is almost as big as the Milky Way but is “ultra-diffuse,” meaning it contains just a vanishing fraction of the stars found in our galaxy—only 1 percent, in this case."