ENAMEL n.
The intensely hard calcified tissue entering into the composition of teeth. It merely covers the exposed parts of the teeth of man, but in many animals is intermixed in various ways with the dentine and cement. Enamel painting, painting with enamel colors upon a ground of metal, porcelain, or the like, the colors being…
EQUIVALENT n.
The comparative proportions by which one element replaces another in any particular compound; thus, as zinc replaces hydrogen in hydrochloric acid, their equivalents are 32.5 and 1. (b) The combining proportion by weight of a substance, or the number expressing this proportion, in any particular compound; as, the equiv…
ERYTHRITE n.
6.(OH)4, of a sweet, cooling taste, extracted from certain lichens, and obtained by the decomposition of erythrin; -- called also erythrol, erythroglucin, erythromannite, pseudorcin, cobalt bloom, and under the name phycite obtained from the alga Protococcus vulgaris. It is a tetrabasic alcohol, corresponding to glycol…