Vermiculate v. t. : To form or work, as by inlaying, with irregular lines or impressions resembling the tracks of worms, or appearing as if formed by the motion of worms.

Vermiculate a. : Wormlike in shape; covered with wormlike elevations; marked with irregular fine lines of color, or with irregular wavy impressed lines like worm tracks; as, a vermiculate nut.

Vermiculate a. : Crawling or creeping like a worm; hence, insinuating; sophistical.

Example:
What is Vermiculate around a chimney liner? is it a hard cement?

Taxonomy
Vermiculite, Vermiculite Pool, Vermiculite Association, mines, commercial vermiculite, Vermiculite Mine, Palabora, South African, perlite, minerals, Schundler Company, asbestos, the samples, North America, grades, Crude, Institute of Occupational Medicine, deposits.

Defination from the web:
vermiculite and its many uses with links to over 100 pages of information. ... The September 2005 IOM Testing Results on Palabora Vermiculite (South African) (in .pdf format) ...