PT values of the 30 apparently healthy individuals tested in each laboratory with the different PT systems were expressed as PT ratios with the use of either the MNPT, the grand mean (arithmetic) PT of the 5 separate FNPPs, or the grand mean (arithmetic) PT of plasma R82A as the denominator term.
â¢ INGESTION (noun). The noun INGESTION has 1 sense: 1. the process of taking food into the body through the mouth (as by eating). Familiarity information: INGESTION used as a noun is very rare. INGESTION (noun). The noun INGESTION has 1 sense: 1. the process of taking food into the body through the mouth (as by eating). Familiarity information: INGESTION used as a noun is very rare.
1) ingestion-taking food in. 2) digestion- breaking down food into molecules small enough to be absorbed into the capillaries and cells of the body. 3) absorption- digested food leaves the digestive system and enters the circulatory system and eventually the cells of the body. 4) elimination- removal of undigested food from digestive system.