intermediary

noun
1
a person or an organization that helps other people or organizations to make an agreement by being a means of communication between them
واسطه, میانجی
synonym mediator, go-between
adjective
1
helping other people or organizations to make an agreement by being a means of communication between them
واسطه, میانجی
2
located or happening between two places, times or stages
میانی, بینابینی, حد واسط
an intermediary stage of development
Mountains were seen as an intermediary realm between heaven and earth.