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.
1. fixer-someone who intervenes with authorities for a person in trouble (usually using underhand or illegal methods for a fee). influence peddler. important person, influential person, personage-a person whose actions and opinions strongly influence the course of events.ixÂ·er. n. 1. One that fixes: a fixer of radios. 2.