For most children, the National Heart, Lung, and Blood Institute recommends one cholesterol screening test between the ages of 9 and 11, and another cholesterol screening test between the ages of 17 and 21.
Wiktionary (0.00 / 0 votes) Rate this definition: fixation (Noun). The act of fixing, or the state of being fixed or fixated. fixation (Noun). The act of uniting chemically with a solid substance or in a solid form; reduction to a non-volatile condition; -- said of gaseous elements. fixation (Noun). The act or process of ceasing to be fluid and becoming firm.
noun fixation; consumption with belief, desire. 1  phobia star. 2  fascination star. 3  delusion star. 4  mania star. 5  passion star. 6  infatuation star. 7  enthusiasm star. 8  compulsion star. 9  preoccupation star. 10  phantom star. 11  case star. 12  monkey star. 13  attraction star. 14  hang-up star. 15  fancy star. 16  crush star. 17  thing star. 18  complex star. 19  fetish star. 20  neurosis star. 21  craze star.