From Longman Dictionary of Contemporary Englishstreakystreak‧y /ˈstriːki/ adjective MARKmarked with streaks streaky grayish marks
Examples from the Corpus
streaky• When the yarns are different colours, or different textures, this can lead to the knitting having a streaky appearance.• At all events, she was awake with the first streaky light of dawn.• There are grayish, streaky marks on the wall over the baseboard radiators.• It rained in the sky, in long streaky sheets, but the rain dried up before it reached the ground.• The sky had turned streaky, the atmosphere raw, too much sulphur in it. 