Definition of titanium. : a silvery-gray light strong metallic element obtained from ilmenite and rutile and used especially in alloys and combined in refractory materials, pigments, and coatings â see element table.
Wiktionary(0.00 / 0 votes)Rate this definition: 1  roster(Noun) A list of names, usually for an organization of some kind such as military officers and enlisted personnel enrolled in a particular unit; a muster roll; or a sports team, with the names of players who are eligible to be placed in the lineup for a particular game.
catalog. 1  a list or record, as of items for sale or courses at a university, systematically arranged and often including descriptive material: a stamp catalog. 2  something that contains such a list or record, as a book, leaflet, or file. 3  a list of the contents of a library or a group of libraries, arranged according to any of various systems.