Is “Ectomorph” a Scrabble word?
Yes
ECTOMORPH
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 Ectomorph
/ˈɛktəʊmɔːf/
noun
1.Someone with a lean, only slightly muscular body
2.: Theoretical body type in which a person has a high metabolism. Such a person can easily maintain a low fat physique, but does not add muscle or body weight easily.
Synonyms: hard gainer