Is “Nidus” a Scrabble word?
Yes
NIDUS
Valid in at least one Scrabble dictionary
Valid in these dictionaries
SOWPODS / CSW
Scrabble UK & International
TWL / NWL
Scrabble North America
Large English Dictionary
General English word list
Meaning of Nidus
noun
1.An aggregate of neurons.
2.A nest for insects or small animals.
3.A place of infection in an organism.