·p.pr. & ·vb.n. of Toss.
II. Tossing ·noun A process for refining tin by dropping it through the air while melted.
III. Tossing ·noun The act of throwing upward; a rising and falling suddenly; a rolling and tumbling.
IV. Tossing ·noun A process which consists in washing ores by violent agitation in water, in order to separate the lighter or earhy particles;
— called also tozing, and treloobing, in Cornwall.