Examples of natural in a Sentence. 1  furniture made of natural materials. 2  The river forms a natural boundary between the two countries. 3  natural foods like whole grain bread and fresh vegetables. 4  Gray hair is one of the natural consequences of getting older. 5  a natural increase in the population. 6  the natural course of the disease.
Synthesis. Definition. noun, plural: syntheses. (1) (biochemistry) The production of an organic compound in a living thing, especially as aided by enzymes. (2) (chemistry) The act or process of forming a complex substance by combining or integrating two or more chemical entities, especially through a chemical reaction. (3) (psychiatry) The integration of different elements of the personality, in opposition to analysis.
A metabolic pathway that results in the synthesis of cellular molecules and macromolecules; requires an input of energy. Cytoskeleton. In eukaryotes, a network of three different types of protein filaments in the cytosol called microtubules, intermediate filaments, and actin filaments.