ester gum

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noun Chemistry.

any of several hard resins produced by the esterification of a natural resin, especially rosin, with a polyhydric alcohol, chiefly glycerol: used in the manufacture of paints, varnishes, and lacquers.

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Which sentence is correct?

His boss, whom he admires, is waiting to meet with him about the big project.

His boss, who he admires, is waiting to meet with him about the big project.

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Origin of ester gum

First recorded in 1935–40

Words nearby ester gum

esteemed, Estelle, Estepona, ester, esterase, ester gum, Esterhazy, esterify, Estes, Estes Park, Esth.