brush2 (def 4).
requiring no brush to use or apply: brushless shaving cream. clear or cleared of brush: a brushless plain. Contemporary Examples My Great Fake Bake Experiment Daniel Nester January 5, 2009 Historical Examples The Biography of a Grizzly Ernest Seton-Thompson Sheila of Big Wreck Cove James A. Cooper
noun the indented lines sometimes left by the bristles of a brush on a painted surface
noun Word Origin
the act or process of reviewing a subject, technique, or the like, for the purpose of renewing the memory, skill, etc.: He gave his Spanish a brushup before his trip to Mexico. the act or process of eliminating or repairing minor flaws: He gave the collection a final brushup before putting it on display.