'Sepiolite' definitions:

Definition of 'sepiolite'

noun

A white clayey mineral [syn: meerschaum, sepiolite]

From: GCIDE

Sepiolite \Se"pi*o*lite`\, n. [Septa + -lite.] (Min.) Meerschaum. See Meerschaum. [1913 Webster]

From: GCIDE

Meerschaum \Meer"schaum\ (m[=e]r"sh[add]m; 277), n. [G., lit., sea foam; meer sea + schaum foam; but it perh. is a corruption of the Tartaric name myrsen. Cf. Mere a lake, and Scum.]
1. (Min.) A fine white claylike mineral, soft, and light enough when in dry masses to float in water. It is a hydrous silicate of magnesia, and is obtained chiefly in Asia Minor. It is manufacturd into tobacco pipes, cigar holders, etc. Also called sepiolite. [1913 Webster]
2. A tobacco pipe made of this mineral; a meerschaum pipe. [1913 Webster]