[kyoo
r-ee-oh-suh] 
| 1. | books, pamphlets, etc., dealing with unusual subjects. |
| 2. | (in selling and collecting books) books, pamphlets, etc., containing pornographic literature or art; erotica. |
| cu·ri·o·sa (kyŏŏr'ē-ō'sə, -zə) pl.n. Books or other writings dealing with unusual, especially pornographic, topics. [New Latin cūriōsa, neuter pl. of Latin cūriōsus, inquisitive; see curious.] |