"The descendants of Dedan, the son of Raamah. They are mentioned" "in Isa. 21:13 as sending out "travelling companies" which lodged" in the forest of Arabia. They are enumerated also by Ezekiel (27:20) among the merchants who supplied Tyre with precious things.

See where Dedanim occurs in the Bible...

Definition of Dedanim:
"the descendants of Dedan"