galaxy cluster
noun
A cluster of galaxies.
Origin
Mid 19th century.
- something for the weekend
- something is up
- something like
- something nasty in the woodshed
- something of
- something of the kind
- something or other
- something speaks for itself
- something would not go (or come) amiss
- sometime
- sometimes
- someway
- somewhat
- somewhat of
- somewhen
- somewhere
- some —— are more equal than others
- somite
- Somme
- Somme, Battle of the
- sommelier
- sommer
- somnambulant
- somnambulantly
- somnambulism