tu·bu·li·bran·chi·a·ta \ˌt(y)übyələˌbraŋkēˈäd.ə, -ˈād.ə\noun plural Etymology: New Latin, from tubuli- + Branchiata in former classifications: an artificial group of gastropod mollusks including those (as of the genus Vermetus) having a tubular shell • tu·bu·li·bran·chi·ate\| ̷ ̷ ̷ ̷ ̷ ̷|braŋkēə̇t, -ēˌāt\adjective or noun