(often plural) a means of communication or access(noun)
WordNet. Princeton University. 2010.
Use "communication channel" in a sentence
"Two-step flow model two-step flow hypothesisTypes of inovation-decisions authority innovation-decisionscollective innovation-decisionsoptional innovation-decisionscontigent innovation-decisionsTypology of diffusion research communication channel usageconsequences of innovationdiffusion networksinnovativenessopinion leadersrate of adoptionrate of adoption in different social systems"
"“Open a subspace communication channel to Sub-Overseer Howwi.”"