A search for lightly ionizing particles has been performed with the MACRO detector. This search was sensitive to particles with charges between 1/5e and close to the charge of an electron, with beta between approximately 0.25 acid 1.0. Unlike previous searches both single track events and tracks buried within high multiplicity muon showers were examined. In a period of approximately one year no candidates were observed. Assuming an isotropic flux, for the single track sample this corresponds to a 90%, C.L. upper flux limit Phi less than or equal to 9.2 x 10(-15) cm(-2) s(-1) sr(-1).
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