ˌärkēˌ noun
also ar·chaeo·bac·te·ri·um ¦ ̷ ̷ ̷ ̷ ̷ ̷ or ̷ ̷ ¦ ̷ ̷ ̷ ̷ at archae- ˌ
Etymology: New Latin, from archae- + bacterium
: any of a class (Archaeobacteria), a separate kingdom (Archaeobacteria) or a domain (Archaea) of primitive microorganisms including methane-producing forms, some red halophilic forms, and others of harsh hot acidic environments
• ar·chae·bac·te·ri·al "ˌ adjective