one of two usually recognized orders of true bacteria; Gram-positive spherical or rod-shaped forms; some are motile; in some classifications considered an order of Schizomycetes
Main Entry: Eu·bac·te·ri·a·les Pronunciation: "yü-(")bak-"tir-E-'A-(")lEz Function: noun plural in some formerclassifications: an order of the class Schizomycetes comprising relatively simple nonfilamentous unbranched bacteria that show no visible sulfur or iron particles and that includespherical and rod-shaped forms