supershell
Word Rarity
Very rare
Frequency: Zipf frequency 0.00 in modern English
15
Scrabble Score
10
Letters
3
Syllables
7
Unique Chars
Meaning
noun
A large region carved out of the interstellar medium by the combination of several supernova shells, leading to a lower density of gas and plasma within than without, larger than any single supernova could create.