Encaustic

Part of speech: noun (n.)

The method of painting in heated wax, or in any way where heat is used to fix the colors.

Part of speech: adjective (a.)

Prepared by means of heat; burned in. Encaustic painting (Fine Arts), painting by means of wax with which the colors are combined, and which is afterwards fused with hot irons, thus fixing the colors. -- Encaustic tile (Fine Arts), an earthenware tile which has a decorative pattern and is not wholly of one color.