[a. F. tournasin, tournassin (Littré), f. tournaser, -nasser to turn (pottery) on the wheel, derivative of tourner to TURN.] A knife or spatula used to remove excess of slip from decorated pottery when partially dried.
1839. Ure, Dict. Arts, etc., 1017. The excess of the paste is removed by an instrument called a tournasin, till the ornamental figure produced by the stamp be laid bare.
1874. Knight, Dict. Mech., 308/1. Excess of slip is removed, after a certain amount of drying, by a spatula or knife, known as a tournasin.
