Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
dentĭfrĭcĭum, ii, n. [dens-frico], tooth-powder, dentifrice, Plin. 28, 11, 49, § 178 sq.; 29, 3, 11, § 46 al.; Scrib. Comp. 59 et saep.