Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
tībīcĭnĭum, ii, n. [tibicen], a playing upon the pipe or flute, a piping, fluting (class.): tibicinii scientia, Cic. N. D. 2, 8, 22; id. Or. 58, 198; App. Flor. p. 341, 28; 342, 20; Gell. 4, 13, 2.