Mycoplasmas - Stealth Pathogens. By Leslie Taylor January, 2001. Mycoplasmas are a specific and unique species of bacteria - the smallest free-living organism known on the planet. The primary differences between mycoplasmas and other bacteria is that bacteria have a solid cell-wall structure and they can grow in the simplest culture media.
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.
Titanium is the fourth most abundant metallic element in the earth's crust. It occurs chiefly as an oxide ore. The commercially important forms are rutile (titanium dioxide) and ilmeite (titanium-iron oxide), the former being richest in titanium content. Metallic titanium was first isolated in impure form in 1887 and with higher purity in 1910.