PERSON n. 9 definitions
, self-conscious being, as distinct from an animal or a thing; a moral agent; a human being; a man, woman, or child. Consider what person stands for; which, I think, is a thinking, intelligent being, that has reason and reflection. Locke.
PHOTOSYNTHESIS n.
action of light. It was formerly called assimilation, but this is now commonly used as in animal physiology. The details of the process are not yet clearly known. Baeyer's theory is that the carbon dioxide is reduced to carbon monoxide, which, uniting with the hydrogen of the water in the cell, produces formaldehyde, t…
PHYLOGENESIS; PHYLOGENY n.
The history of genealogical development; the race history of an animal or vegetable type; the historic exolution of the phylon or tribe, in distinction from ontogeny, or the development of the individual organism, and from biogenesis, or life development generally.