Is “Exponentiation” a Scrabble word?
Yes
EXPONENTIATION
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 Exponentiation
/ˌɛk.spoʊ.ˌnɛn.ʃi.ˈeɪ.ʃən/
noun
1.The process of calculating a power by multiplying together a number of equal factors, where the exponent specifies the number of factors to multiply.
2.A mathematical problem involving exponentiation.