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.
I have and I talked to a friend who has a boyfriend at the same place. The roster number is three digits, generally their batallion number and their number of which they are in the company. Going down by last name, they would get the two digit number. For example, one women's husband was in the 3rd batallion, and the 33rd name on the list so his RN# was 333.