Tetrolic adj. (Chem.) Of, pertaining to, or designating, an acid, C3H3.CO2H, of the acetylene series, homologous with propiolic acid, obtained as a white crystalline substance.
... saponification. Nearly all fats contain members belonging to one of the three series of fatty acids, e.g., acids of the type of acetic acid (stearic and palmitic acids); such as are derivatives of acrylic acid (oleic and erucic acids); and such as are homologues of tetrolic acid (linoleic acid). It is likely that the relative quantity of each of these acids is variable, with regard to the same fat, within definite limits, and changes with the nature of the fatty substance. ... — Scientific American Supplement, Vol. XIX, No. 470, Jan. 3, 1885 • Various
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