määrimine tingimustes, kus kontakteeruvaid pindu eraldab vedelikmäärimiseks piisavalt paks määrdekiht, mis moodustub pindade suhtelise liikumise toimel (vrd vedelikmäärimine), a system (or a mode) of lubrication in which the shape and relative motion of sliding surfaces causes the formation of a fluid film that has sufficient pressure to separate the surfaces (compare: fluid lubrication)