Line dismissed by travelling salesmen as a group (2,5)
I believe the answer is:
en masse
'as a group' is the definition.
(synonyms)
I don't understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for en masse that I've seen before include "Many as one" , "All together as a group" , "In a group U altogether" , "Sees man (anag.)" , "in concert" .)