The act of distinguishing or describing a thing, by giving its different, or specific difference; exact definition or determination.
The gradual formation or production of organs or parts by a process of evolution or development, as when the seed develops the root and the stem, the initial stem develops the leaf, branches, and flower buds; or in animal life, when the germ evolves the digestive and other organs and members, or when the animals as they advance in organization acquire special organs for specific purposes.
The supposed act or tendency in being of every kind, whether organic or inorganic, to assume or produce a more complex structure or functions.
But there's a difference between having artistic interests and being psychotic. That's more than a fine line of differentiation, and I do see that a bit too much. Crispin Glover
We identify in our exerience a differentiation between what we do and what happens to us. Alan Watts
America has believed that in differentiation, not in uniformity, lies the path of progress. It acted on this belief; it has advanced human happiness, and it has prospered. Louis D. Brandeis
The ultimate reason of things must lie in a necessary substance, in which the differentiation of the changes only exists eminently as in their source; and this is what we call God. Gottfried Leibniz
There have only been about a half dozen genuinely important events in the four-billion-year saga of life on Earth: single-celled life, multicelled life, differentiation into plants and animals, movement of animals from water to land, and the advent of mammals and consciousness. Elon Musk