Gelatin is a protein and in aqueous solutions is a hydrophilic colloid. Gelatin derived from an acid-treated precursor is known as Type A, and gelatin derived from an alkali-treated precursor is known as Type B.
The philosophes (French for philosophers) were the intellectuals of the 18th century Enlightenment. [1] Few were primarily philosophers; rather, philosophes were public intellectuals who applied reason to the study of many areas of learning, including philosophy, history, science, politics, economics and social issues.
pherÂ·oÂ·mone. A chemical that is secreted by an animal and influences the behavior or development of other animals of the same species. For example, the male and female of many species establish territory and attract mates by means of pheromones.