Lewis & Short

Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.

ăcădēmĭcus, a, um, adj., = ἀκαδημικός, relating to the Academy, Academic: philosophi, Gell. 11, 5.
Hence, subst.: ăcă-dēmĭcus, i, m., an Academic philosopher, Cic. N. D. 2, 1, 1; and in plur., id. ib. 1, 1, 1; id. Ac. 2, 44; id. Fin. 2, 11, 34 al.; hence quaestio, inquiry on the Academic philosophy, id. Att. 13, 19, 3 (v. academia, II. B.).
In neutr. plur.: Ăcădēmĭca, one of Cicero’s writings, the Academics, Cic. Off. 2, 2, 8; id. Att. 13, 19, 5; also called Academici libri, id. Tvsc. 2, 2, 4.