The Collaborative International Dictionary of English v.0.48:

Thurible \Thu"ri*ble\, n. [L. thuribulum, turibulum, from thus,
   thuris, or better tus, turis, frankincense, fr. Gr. ? a
   sacrifice, an offering, from ? to sacrifice.] (R. C. Ch.)
   A censer of metal, for burning incense, having various forms,
   held in the hand or suspended by chains; -- used especially
   at mass, vespers, and other solemn services. --Fairholt.
   [1913 Webster]

WordNet (r) 3.0 (2006):

thurible
    n 1: a container for burning incense (especially one that is
         swung on a chain in a religious ritual) [syn: censer,
         thurible]