The lowest possible energy state of a substance is defined as the absolute zero (−273.15 °C, or −459.67 °F) of temperature.
Substance is defined as the substrate of qualities and in terms of what alone can be an inherent cause.
The refractive index of a substance is defined as the ratio of the velocity of electromagnetic radiation in a vacuum to its velocity in the medium of interest.
During crystallization, many physico-chemical characteristics of the substance are defined, including crystal polymorph, shape and size, chemical purity and stability, bioavailability, solubility and dissolution rate.
We saw in the previous section that the differentia in terms of which a substance is defined is not treated as being 'in' objects, as other properties are.
Antioxidant activity of a substance is defined as the removal of free radical before it causes oxidative damage to the living system.
This substance is defined as the reaction mass of branched and linear C7-C9 alkyl 3-[3- 2-H-benzotriazole-2-yl -5- 1,1-dimethyl -4-hydroxyphenyl]propionates.
Let us agree, for purposes of argument, that human being is a kind of substance and that rationality and animality are the properties in terms of which that substance is defined.
In these counts and workflows the terms "compound" and "substance" are defined as by PubChem: compounds as unique chemical structures, identified by CID, and substances as sourced and registered experimental materials, identified by SID.
They are: (1) explaining and justifying the sense in which substantial forms have causal or explanatory power, especially in the light of a developed mechanistic chemistry or physics; (2) the difficulty in understanding the relation of substantial form to properties, especially those in terms of which a given substance is defined.
