The PSA test and digital rectal exam (DRE) may be used to screen both asymptomatic and symptomatic men for prostate cancer. PSA is a protein produced primarily by cells in the prostate and most of the PSA is released into semen, but small amounts of it are also released into the blood. PSA exists in two forms in the blood: free (not bound) and complexed (cPSA, bound to other proteins).
flight of fancy(noun) Synonyms: reverie, daydream. flight of fancy(noun) An idea, narrative, suggestion, etc. which is extremely imaginative and which appears to be entirely unrealistic, untrue, or impractical; thinking which is very speculative. Synonyms: reverie, daydream.
flight of fancy. An unrealistic idea or fantastic notion, a pipe dream. For example, She engaged in flights of fancy, such as owning a million-dollar house. This idiom uses flight in the sense of a soaring of the imagination, a usage dating from the mid-1600s. See also: fancy, flight, of.