a.

1. 【化】飽和的；滲透的

1. saturate的動詞過去式、過去分詞

adj.

1. thoroughly soaked.
   ▸Chemistry  (of a solution) containing the largest possible amount of solute.
2. Chemistry  (of an organic molecule) containing the greatest possible number of hydrogen atoms, without double or triple bonds.
   ▸denoting fats containing a high proportion of fatty acid molecules without double bonds.
3. (of colour) bright, rich, and without any added white.