Using recent DO data on the dijet mass spectrum, we present a limit on flav
or-universal colorons. At 95% CL we find M-c/cot theta > 837 GeV. We discus
s the implications of this limit for models of quark compositeness, non-sta
ndard gluon interactions, and dynamical electroweak symmetry breaking. In a
ddition, we place a lower bound Lambda(A8) > 2.1 TeV on the scale of color-
octet axial-vector contact interactions among quarks which could arise in m
odels of quark compositeness. (C) 1998 Elsevier Science B.V. All rights res
erved.