Is “Meson” a Scrabble word?
Yes
MESON
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 Meson
/ˈmɛs.ɒn/
noun
1.(rare outside entomology) The mesial plane dividing the body into similar right and left halves.