Is “Exteriorizing” a Scrabble word?
Yes
EXTERIORIZING
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 Exteriorizing
/ɛkˈstɪɹi.əˌɹaɪzɪŋ/
verb
1.To externalize.
2.To expose (an internal organ) for observation or surgery.